trench Definition

a long cut in the ground : ditch; especially : one used for military defense often with the excavated dirt thrown up in front

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

a long, narrow, and usually steep-sided depression in the ocean floor

to make a cut in : carve

to protect with or as if with a trench

to cut a trench in : ditch

a usually double-breasted raincoat with deep pockets, wide belt, and often straps on the shoulders

a waterproof overcoat with a removable lining designed for wear in trenches

a disease that is usually marked by fever and pain in muscles, bones, and joints and that is caused by a bacterium (Bartonella quintana synonym Rochalimaea quintana) transmitted by the human body louse (Pediculus humanus humanus)

a painful foot disorder resembling frostbite and resulting from prolonged exposure to cold and wet

vincent's angina

vincent's infection

warfare in which the opposing forces attack and counterattack from a relatively permanent system of trenches protected by barbed-wire entanglements

a narrow trench especially for shelter in battle from bomb and shell fragments

sea-floor trench extending in a general east-west direction south of the Cayman Islands and containing the deepest point in the Caribbean Sea at 24,720 feet (7535 meters) below sea level

sea floor trench south of and approximately parallel to Sumatra, Java, and the Lesser Sunda Islands and containing the deepest known part of the Indian Ocean, at 25,344 feet (7725 meters) below sea level