primum mobile
[ pree-moom -moh-bi-le; English prahy-muhm -mob-uh-lee, pree- ]
/ ˈpri mʊm ˈmoʊ bɪˌlɛ; English ˈpraɪ məm ˈmɒb əˌli, ˈpri- /
noun Latin.
(in Ptolemaic astronomy) the outermost of the 10 concentric spheres of the universe, making a complete revolution every 24 hours and causing all the others to do likewise.
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Origin of primum mobile
Literally, “first moving (thing)”
Words nearby primum mobile
primrose path, primrose yellow, primsie, primula, primulaceous, primum mobile, primus, primus inter pares, Primus stove, prin., prince
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for primum mobile
primum mobile
/ Latin (ˈpraɪmʊm ˈməʊbɪlɪ) /
noun
a prime mover
astronomy the outermost empty sphere in the Ptolemaic system that was thought to revolve around the earth from east to west in 24 hours carrying with it the inner spheres of the planets, sun, moon, and fixed stars
Word Origin for primum mobile
C15: from Medieval Latin: first moving (thing)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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