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ampere

(Encyclopedia)ampere ămˈpēr [key], abbr. amp or A, basic unit of electric current. It is the fundamental electrical unit used with the mks system of units of the metric system. The ampere is officially defined a...

Hindu Kush

(Encyclopedia)Hindu Kush hĭnˈdo͞o ko͝osh [key], a high mountain system, extending c.500 mi (800 km) W from the Pamir Knot, N Pakistan, into NE Afghanistan; rising to 25,236 ft (7,692 m) in Tirich Mir, on the bo...

tachometer

(Encyclopedia)tachometer tăkŏmˈətər [key], instrument that indicates the speed, usually in revolutions per minute, at which an engine shaft is rotating. Some tachometers, especially those used in automobiles, ...

centimeter

(Encyclopedia)centimeter sĕnˈtĭmēˌtər [key], abbr. cm, unit of length equal to 0.01 meter, the basic unit of length in the metric system. The centimeter is the unit of length in the cgs system. It is approxim...

nodes of Ranvier

(Encyclopedia)nodes of Ranvier: see nervous system. ...

national grasslands

(Encyclopedia)national grasslands: see National Forest System. ...

crypts of Lieberkühn

(Encyclopedia)crypts of Lieberkühn: see digestive system. ...

Altay

(Encyclopedia)Altay: see Altai, mountain system, Asia. ...

celestial equator

(Encyclopedia)celestial equator: see equatorial coordinate system. ...

Mitchell, Mount

(Encyclopedia)Mitchell, Mount, peak, 6,684 ft (2,037 m) high, W N.C., in the Black Mts. of the Appalachian system; highest peak E of the Mississippi River. ...