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internal-combustion engine

(Encyclopedia)CE5 Internal-combustion engines: In the four-stroke reciprocating engine (above), a mixture of fuel and air is taken into the chamber on the down-stroke of the piston, is compressed on the up-strok...

solar system

(Encyclopedia)CE5 Solar system CE5 solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the ...

Bosnia and Herzegovina

(Encyclopedia)CE5 Bosnia and Herzegovina bŏzˈnēə, hĕrtsəgōvēˈnə [key], Serbo-Croatian ...

Maryland

(Encyclopedia)CE5 Maryland mârˈələnd [key], one of the Middle Atlantic states of the United States. It is bounded by Delaware and the Atlantic Ocean (E), the District of Columbia (S), Virginia and West Virgi...

Ohio, state, United States

(Encyclopedia)CE5 Ohio, midwestern state in the Great Lakes region of the United States. It is bordered by Pennsylvania (NE), West Virginia (SE) and Kentucky (S) across the Ohio River, Indiana (W), and Michigan ...

Oregon, state, United States

(Encyclopedia)CE5 Oregon ŏrˈĭgən, –gŏn [key], state in the Pacific Northwest of the United States. It is bordered by Washington, largely across the Columbia River (N), Idaho, partially across the Snake Ri...

Indiana, state, United States

(Encyclopedia)CE5 Indiana, midwestern state in the N central United States. It is bordered by Lake Michigan and the state of Michigan (N), Ohio (E), Kentucky, across the Ohio River (S), and Illinois (W). Indu...

Guinea, country, Africa

(Encyclopedia)CE5 Guinea gĭnˈē [key], officially Republic of Guinea, republic (2015 est. pop. 12,092,000), 94,925 sq mi (245,856 sq km), W Africa. It is bounded on the north by Guinea-Bissau, Senegal, and Mal...

Kazakhstan

(Encyclopedia)CE5 Kazakhstan or Kazakstan käˌzäkstänˈ [key], officially Republic of Kazakhstan, republic (2015 est. pop. 17,750,000), c.1,050,000 sq mi (2,719,500 sq km), central Asia. It borders on Siberia...

Colorado, state, United States

(Encyclopedia)CE5 Colorado kŏlərădˈə, –rădˈō, –räˈdō [key], state, W central United States, one of the Rocky Mt. states. It is bordered by Wyoming (N), Nebraska (N, E), Kansas (E), Oklahoma and Ne...