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Mobile, city, United States

(Encyclopedia)Mobile mōbēlˈ, mōˈbēlˌ [key], city (1990 pop. 196,278), seat of Mobile co., SW Ala., at the head of Mobile Bay and at the mouth of the Mobile River; inc. 1814. Lying on one of the continent's g...

United States Air Force Academy

(Encyclopedia)United States Air Force Academy, at Colorado Springs, Colo.; for training young men and women to be officers in the U.S. air force; authorized in 1954 by Congress. Temporary quarters were opened at th...

Defense, United States Department of

(Encyclopedia)Defense, United States Department of, executive department of the federal government charged with coordinating and supervising all agencies and functions of the government relating directly to nationa...

State, United States Department of

(Encyclopedia)State, United States Department of, executive department of the federal government responsible, under the President's direction, for the making and execution of American foreign policy. Before and ...

merchant marine

(Encyclopedia)merchant marine: see shipping.

marine biology

(Encyclopedia)marine biology, study of ocean plants and animals and their ecological relationships. Marine organisms may be classified (according to their mode of life) as nektonic, planktonic, or benthic. Nektonic...

marine engine

(Encyclopedia)marine engine, machine for the propulsion of watercraft. The earliest marine power plants, reciprocating steam engines, were used almost exclusively until the early 1900s. In later ship construction t...

marine insurance

(Encyclopedia)marine insurance: see insurance. ...

marine pollution

(Encyclopedia)marine pollution: see water pollution. ...

Quantico

(Encyclopedia)Quantico, town, (2000 pop. 561), Prince William Co., NE Va., on the Potomac River, 29 mi (47 km) SSW of Washington, D.C.; inc. 1927, reinc. 1934. It is now the site of the FBI training academy, and is...