trou·ser (trou?z?r)n. often trousers A pair of pants, especially when extending from waist to ankles.[Back-formation from trousers, alteration of obsolete trouse, from Scottish Gaelic triubhas.]trou?sered (-z?rd) adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.trousers (?tra?z?z) pl n1. (Clothing & Fashion) a garment shaped to cover the body from the waist to the ankles or knees with separate tube-shaped sections for both legs2. wear the trousers informal Brit to have control, esp in a marriage. US equivalent: wear the pants [C17: from earlier trouse, a variant of trews, influenced by drawers] ?trousered adj ?trouserless adjCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014trou?sers (?tra? z?rz) n. (used with a pl. v.) Sometimes, trouser. a usu. loose-fitting outer garment for the lower part of the body, having individual leg portions, usu. of full length.Also called pants. Compare slacks. [1585?95; trouse (Trousers are a piece of clothing that covers your body from the waist downwards, and covers each leg separately. Trousers is a plural noun. You use a plural form of a verb with it.Don’t talk about ‘a trousers’. You say some trousers or a pair of trousers.You usually use a singular form of a verb with a pair of trousers.The form trouser is often used in front of another noun.In American English, more common words for this item of clothing are pants or slacks.