请输入您要查询的英文单词：

　

单词 primum mobile
释义

WordReference Random House Unabridged Dictionary of American English © 2024
pri•mum mo•bi•le  (prē′mŏŏm mō′bi le′; Eng. prī′məm mob′ə lē′, prē′-),USA pronunciation [Latin.]
  1. Foreign Terms(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.
  2. Foreign TermsSee prime mover. 
  • literally, first moving (thing)

Collins Concise English Dictionary © HarperCollins Publishers::
primum mobile Latin: /ˈpraɪmʊm ˈməʊbɪlɪ/ n
  1. a prime mover
  2. 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
Etymology: 15th Century: from Medieval Latin: first moving (thing)
随便看

　

英语词典包含188688条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间：2025/7/23 8:54:35