standing trench
1trench warfare — combat in which each side occupies a system of protective trenches. [1915 20] * * * Warfare in which the opposing sides attack, counterattack, and defend from sets of trenches dug into the ground. It was developed by Sébastien Le Prestre de… …
2Trench effect — The trench effect is a combination of two well understood but separate ideas: the Coandă effect from fluid dynamics and the flashover concept from fire dynamics.The Coandă effect is the tendency of a fast moving stream of air to deflect towards… …
3shelter trench — noun : a trench hastily constructed to secure shelter from direct fire that is usually first dug as a shallow excavation with the dirt thrown up as a parapet in front to shelter a man lying down and then if time permits is deepened as rapidly as… …
4List of dodgeball variations — The following is a list of rules variations for the collection of games known as dodgeball. Agility Ball Played on a basket ball court with the two main hoops down, depending on how many people are on each team, there are either 8 balls or 10 or… …
5river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
6United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
7international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
9cañada — /keuhn yah deuh, yad euh/, n. Chiefly Western U.S. 1. a dry riverbed. 2. a small, deep canyon. [1840 50; < Sp, equiv. to cañ(a) CANE + ada n. suffix] * * * Canada Introduction Canada Background: A land of vast distances and rich natural resources …
10Canada — /kan euh deuh/, n. a nation in N North America: a member of the Commonwealth of Nations. 29,123,194; 3,690,410 sq. mi. (9,558,160 sq. km). Cap.: Ottawa. * * * Canada Introduction Canada Background: A land of vast distances and rich natural… …
