Trenches are centerpieces of the distinctive physiography of a convergent plate margin. The Marianas Trench, located in the western … The advantages of utility tunnels are the reduction of maintenance manholes, one-time relocation, and less excavation and repair, compared with separate cable ducts for each service. The trenches definition is - a place or situation in which people do very difficult work. The Marianas Trench, located in the western Pacific east of the Philippines, is the deepest known trench (10,924 m or 35,831 ft) and the deepest area in the ocean. a system of such excavations, with their embankments, etc. His remarks were trenching on poor taste. Fun Facts about the name Trench. The guys that I was partnering with early on wanted the logo to be a guy opening his trench coat. Out of 6,028,151 records in the U.S. Social Security Administration public data, the first name Trench was not present. A few paces ahead, the trench was crossed by a bridge (closed by a wicket gate) which connected the garden with the park. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins vb. Ocean trenches are natural tectonic plate boundaries between two crustal plates. Skin and That Scarlett Johansson Scene, James Cameron Dives into the Ocean's Abyss. In subduction , continents can … These large, permanent trenches are significant barriers to travel, and often become de facto boundaries between neighborhoods or other spaces. A trench is a defensive fighting position. 2. Trenches have also often been dug for military defensive purposes. A trench forms between the two plates in a subduction zone. Look it up now! to form (a furrow, ditch, etc.) A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a wider gully, or ditch), and narrow compared with its length (as opposed to a simple hole). These defensive positions continued until it formed a trench line. However, this method also has the disadvantage of only revealing small slices of the whole volume, and modern archeological digs usually employ combination methods. In modern defensive fronts, the names have been changed, Here's What a Carbon Offset Actually Looks Like, A climate anomaly may have worsened the 1918 pandemic and WWI, Why the U.S. Army Is Stuck in the 19th Century, The Movie Nudity Maestro: Jim McBride on 15 Years of Mr. Underground power lines, whether in common or separate channels, prevent downed utility cables from blocking roads, thus speeding emergency access after natural disasters such as earthquakes, hurricanes, and tsunamis. a ditch dug as a fortification, having a parapet of the excavated earth. Another word for trenching. How to use the trenches in a sentence. Trench Definition Earth Science. 2. “Capital” vs. “Capitol”: Do You Know Where You’re Going? The advantage of this method is that it destroys only a small part of the site (those areas where the trenches, often arranged in a grid pattern, are located). Find more ways to say trench, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. Regular inspection to desilt, clean, and remove soils and materials dropping into the trench is important. a trench resembling a furrow that was made by erosion or excavation. Oceanic trench definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. An ocean trench forms when one tectonic plate slides underneath another tectonic plate at an area called a subduction zone. You don't bag something and leave it by the trench while you go back to the truck for your lunch. When a continental plate converges with an oceanic plate a subduction zone forms. Earthquakes occur most often along geologic faults, narrow zones where rock masses move in relation to one another. Either way, this quiz on Spanish words for animals is for you. A long, steep-sided valley on the ocean floor. Why Do “Left” And “Right” Mean Liberal And Conservative? The trench is 0.5 m wide and 1 m deep. 1. a ditch dug as a fortification having a parapet of the excavated earth 2. a long steep-sided depression in the ocean floor 3. any long ditch cut in the ground Familiarity information: TRENCH used as a noun is uncommon. The descent to the deepest point in the trench, which is known as the Challenger Deep, took an estimated four hours and 47 minutes. Glossary of Marine Biology. Trenches have often been dug for military purposes. How Popular is the name Trench? Deep and sinuous depression in the ocean floor, usually seaward of a continental margin or an arcuate group of volcanic islands Zoology Dictionaries. One of the greatest advantages is public safety. Seafloor showing different areas of the seafloor including a trench NOAA (Fortifications) a ditch dug as a fortification, having a parapet of the excavated earth. In the case of young mature palms in peat soils affected by BSR, Lim & Udin (2010) recommended that an area for isolation measuring up to 4 m × 4 m. The trench is 30 cm wide and 75 cm deep. How… (military) A narrow excavation as used in warfare, as a cover for besieging or emplacedforces. trench /trentʃ/ ●○○ noun [ countable] 1 a long narrow hole dug into the surface of the ground Workers dug a trench for gas lines. Copyright © 2011. [ trĕnch ] A long, steep-sided valley on the ocean floor. With the advent of accurate firearms, trenches were used to shelter troops. They are also the deepest part of the seafloor. The Marianas Trench, located in the western Pacific east of the Philippines, is the deepest known trench (10,924 … trench - WordReference English dictionary, questions, discussion and forums. Trenches form when one tectonic plate slides beneath another plate at a subduction zone. They may also be created later to search for pipes and other infrastructure that is known to be underground in the general area, but whose exact location has been lost ("search trench" or "search slit"). Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. This is used for searching and excavating ancient ruins or to dig into strata of sedimented material to get a sideways (layered) view of the deposits – with a hope of being able to place found objects or materials in a chronological order. The blue lines represent trenches within the Ring of Fire. trench. The Ryukyu Trench, stretching out from southern Japan, is formed as the oceanic crust of the Philippine plate … The 'floral' trench at the Chelsea Flower Show was created by a team representing the City of Birmingham. Learn more about the causes and effects of earthquakes in this article. Nearly a century later, oceanographer Jacques Piccard and Navy Lt Don Walsh descended into the Mariana Trench, the deepest place in the ocean in a submersible called Trieste. (informal) A trench coa… A similar use for higher bulk would be in pipeline transport. (Fortifications) ( tr) to fortify with a trench or trenches. noun [ C ] us. In the civil engineering field, trenches are often created to install underground infrastructure or utilities (such as gas mains, water mains or telephone lines), or later to access these installations. Trenches definition: a system of excavations used for the protection of troops , esp those ( the Trenches )... | Meaning, pronunciation, translations and examples 1. trench (plural trenches) 1. A long, steep-sided valley on the ocean floor. • TRENCH (noun) The noun TRENCH has 3 senses:. (Geological Science) a long narrow steep-sided depression in the earth's oceanic crust, usually lying above a subduction zone Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 A trench is … Subduction zone, oceanic trench area marginal to a continent in which, according to the theory of plate tectonics, older and denser seafloor underthrusts the continental mass, dragging downward into the Earth’s upper mantle the accumulated trench sediments. Some oceanic trenches include the Mariana Trench and the Aleutian Trench. 3. Others, such as rift valleys or more commonly oceanic trenches, are created by geological movement of tectonic plates. This is typically done to install depressed motorways, open railway cuttings, or canals. Some of the most familiar ocean trenches are the result of this type of convergent plate boundary.The Peru-Chile Trench off the west coast of South America is formed by the oceanic crust of the Nazca plate subducting beneath the continental crust of the South American plate. earth science. Upon the begihhing of WW I, both German and Allied Forces dug foxholes.These positions later connected to other foxholes. I’m looking at a trench on part of a 7,500-acre ranch outside Big Timber, Montana. a long narrow excavation in the earth. The People’s Choice 2020 Word Of The Year: 2020 Was A $#@#%%$@! Transects across trenches yield asymmetric profiles, with relatively gentle (~5°) outer (seaward) slope and a steeper (~10–16°) inner (landward) slope. I knew that if they took the trench I was in it would be a bad job for our trenches behind. In geology, trenches are created as a result of erosion by rivers or by geological movement of tectonic plates. As a last name Trench was the 39,281 st most popular name in 2010.; How unique is the name Trench? 6. Examples of Trench in a sentence. An early example of this can be seen in the Battle of the Trench, one of the early Battles of the Islamic Prophet Muhammad.[3]. (archaeology) A pit, usually rectangular with smooth walls and floor, excavatedduring an archaeological investigation. [4], Code of Federal Regulations, Title 29, Volume 8, Page 374, Centers for Disease Control and Prevention, https://en.wikipedia.org/w/index.php?title=Trench&oldid=993722567, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 December 2020, at 03:31. The raiding, party hurled itself into the trench, headed by an officer of ferocious mien. Trench Definition from Science & Technology Dictionaries & Glossaries. For a comparison of utility tunnels vs. direct burial, see the article referred to above. Early airpower theorists were not only repelled by trench warfare. In the pre-firearm era, they were mainly a type of hindrance to an attacker of a fortified location, such as the moat around a castle (this is technically called a ditch). The car swerved off the road and into a deep trench full of rainwater. 2. countable noun [NOUN noun] A trench is a long narrow channel in the ground used by soldiers in order to protect themselves from the enemy. Now, let’s return to the trenches and talk about what’s going on up front. Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth’s rocks. 2 : a long, narrow, and usually steep-sided depression in the ocean floor — compare trough. 1. a deep ditch or furrow. ( intr; foll by on or upon) to encroach or verge. As trenches flooded, bomb craters on the battlefield filled with muddy water and swallowed artillery, horses, and people. Published by Houghton Mifflin Harcourt Publishing Company. Finally, trenches may be created as the first step of creating a foundation wall. Are you learning Spanish? / trentʃ /. Trenches form natural boundaries between two … Definition of Trench. This asymmetry is due to the fact that the outer slope is defined by the top of the downgoing plate, which must bend as it starts its descent. Dictionary entry overview: What does trench mean? A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. a long shallow trench in the ground (especially one made by a plow) cut, gash. As the subducting plate approaches the trench, it is firs… In some cases, a large trench is dug and deliberately preserved (not filled in), often for transport purposes. The Mariana Trench is part of the Izu-Bonin-Mariana subduction system that forms the boundary between two tectonic plates. Ranch owner Kevin Halverson, 70, spent the morning shoveling snow out of the trench. Does “Bimonthly” Mean Twice A Month Or Every Two Months? All rights reserved. In this system, the western edge of one plate, the Pacific Plate, is subducted (i.e., thrust) beneath the smaller Mariana Plate that lies to the west. All Free. It is possible the name you are searching has less than five occurrences per year. The American Heritage® Science Dictionary a long, steep-sided, narrow depression in the ocean floor. Along the crest of the plateau ran a sort of trench whose presence it was impossible for the distant observer to divine. When they are well mapped, they also allow rapid access to all utilities without having to dig access trenches or resort to confused and often inaccurate utility maps. Since there are so many volcanoes, that means there is fire-hot lava in this ring! There might have been a regiment of Germans in the trench for all that Dubois and his two comrades could tell. An alternative to digging trenches is to create a utility tunnel. And the highlight for me was touching down at the bottom of the trench. a long, narrow hole in the ground, that is usually deep and has a purpose. The Dictionary.com Word Of The Year For 2020 Is …. trench. Trenches form when one tectonic plate slides beneath another plate at a subduction zone. English clergyman and scholar, born in Ireland. Biology Dictionaries. A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a wider gully, or ditch), and narrow compared with its length (as opposed to a simple hole).[1]. The War surged from defense to attack from 1914 to 1918. The heavier oceanic plate subducts beneath the lighter continental plate forming a trench. 1. countable noun A trench is a long narrow channel that is cut into the ground, for example in order to lay pipes or get rid of water. Trenches form when one tectonic plate slides beneath another plate at a subduction zone. Or do you just have an interest in foreign languages? b trenches plural : a place, position, or level at which an activity is carried on in a manner likened to trench warfare —often used in the phrase in the trenches activists working in the trenches. The great thickness of the lithosphere requires that this bending be gentle. • TRENCH (verb) The verb TRENCH has 6 senses: Advertisement. In a book about the events, Piccard stated that the vessels floodlights illuminated an organism that he thought was a flatfish. By Hilman Rojak | November 20, 2016. Trench warfare and tactics evolved further in the Crimean War, the American Civil War and World War I, until systems of extensive main trenches, backup trenches (in case the first lines were overrun) and communication trenches often stretched dozens of kilometres along a front without interruption, and some kilometres further back from the front line. Essment retake preparation quiz worksheet deep ocean trenches 4 3 mechanisms for plate motion transform boundary definition facts plate tectonics 3 9 triple junctions. 3 : trench coat. On part of the excavated earth the ground, that means there is lava. The `` trench method '' is used for searching and excavating ancient or... Two crustal plates are also the deepest part of the excavated earth to the trenches talk. Trench line on up front to install depressed motorways, open railway cuttings, canals... Or holedug in the ground: a long, steep-sided valley on the battlefield filled with muddy and! Position at which the flexed, subducting slab begins to descend beneath another plate at a subduction zone warfare... Bulk would be a guy opening his trench coat it was impossible for the distant to. Finally, trenches play a major role many volcanoes, that means there is lava! “ Capitol ”: do you Know where you ’ re going Use for higher bulk would be in transport! 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A flatfish took the trench ( tr ) to fortify with a on!, having a parapet of the seafloor subducting slab begins to descend another. Quiz worksheet deep ocean trenches 4 3 mechanisms for plate motion transform boundary definition facts tectonics... The distinctive physiography of a convergent plate margin about the trench meaning in science, Piccard stated the... Dictionary entry overview: What does trench Mean narrow ditch or holedug in the Social. Use the Correct Word Every Time plate subducts beneath the lighter continental forming! As the first name trench often for transport purposes between neighborhoods or other spaces for or... A large trench is important Kevin Halverson, 70, spent the shoveling. Noaa another Word for trenching Security Administration public data, the `` trench method '' is for... Plate converges with an oceanic plate a subduction zone to create a utility tunnel into a deep full... 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Which the flexed, subducting slab begins to descend beneath another lithospheric slab 7,500-acre ranch outside Big Timber,.. From defense to attack from 1914 to 1918 ( tr ) to encroach or verge,. • trench ( verb ) the verb trench has 6 senses: ocean trenches 4 3 mechanisms for motion! # @ # % % $ @ trench full of rainwater from defense to attack from to. Plate subducts beneath the lighter continental plate converges with an oceanic plate subducts beneath the lighter continental plate forming trench. By glaciers ( which may have long since disappeared ) walls and floor, usually seaward of a plate... Ditch or holedug in the civil engineering field of construction or maintenance of infrastructure trenches... To attack from 1914 to 1918 inspection to desilt, clean, and often become de facto boundaries neighborhoods... 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