Sphere Definition
(mathematics) Used to form nouns indicating a sphere of x dimensions.
Other Word Forms of Sphere
Noun
Origin of Sphere
-
From Old French sphere, from Late Latin sphÄ“ra, earlier Latin sphaera (“ball, globe, celestial sphere"), from Ancient Greek σφαῖρα (sphaira, “ball, globe"), of unknown origin. Compare Persian سپهر (sepehr, “sky")
From Wiktionary
Middle English spere from Old French espere from Latin sphaera from Greek sphaira
From American Heritage Dictionary of the English Language, 5th Edition
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