HEMISPHERES

Noun

hemispheres

plural of hemisphere

Source: Wiktionary


HEMISPHERE

Hem"i*sphere, n. Etym: [L. hemisphaerium, Gr. hémisphère. See Hemi-, and Sphere.]

1. A half sphere; one half of a sphere or globe, when divided by a plane passing through its center.

2. Half of the terrestrial globe, or a projection of the same in a map or picture.

3. The people who inhabit a hemisphere. He died . . . mourned by a hemisphere. J. P. Peters. ten Cerebral hemispheres. (Anat.) See Brain.

– Magdeburg hemispheres (Physics), two hemispherical cups forming, when placed together, a cavity from which the air can be withdrawn by an air pump; -- used to illustrate the pressure of the air. So called because invented by Otto von Guericke at Magdeburg.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

25 November 2024

ONCHOCERCIASIS

(noun) infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America


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