English Dictionary

primum mobile

IPA（発音記号）

/ˌpɹaɪməm ˈməʊbɪli/

名詞

歴史的 広義

(astronomy, historical) The outermost celestial sphere of the heavens in Ptolemaic astronomy, which was believed to cause all the inner spheres to rotate.

日本語の意味

プトレマイオス天文学における、内側の天球すべてを回転させると考えられていた最外層の天球

In medieval cosmology, scholars debated whether the primum mobile itself needed a prime mover beyond the chain of celestial spheres.

中世の宇宙観では、学者たちは、最外層の天球自体が天球の連鎖の外にある第一の動者を必要とするかどうかを議論した。

意味（1）

(astronomy, historical) The outermost celestial sphere of the heavens in Ptolemaic astronomy, which was believed to cause all the inner spheres to rotate.

But as there is a double motion of the stars, that is, under the primum mobile, and round the world, by both which, as we have said, they influence, we must consequently suppose, that the significators rule over things subjected to them by this twofold (or double) motion, to wit, under the primum mobile, and round the world.

意味（2）

(chiefly philosophy, theology) The prime mover or first cause (“an initial cause from which all other causes and effects follow”).

Have we got among our primum mobiles the force of such elastic vapours as be generated for the purpose out of nonelastic substances, and are not incondensible? A good magazine of vitr[iolic] acid and powder'd marble would not only save the expence of air in feeding fire, but generate heat.

意味（3）

(by extension) The person or thing that is the main impetus for some action; a driving force.

The great wheels, the primum mobiles, that have gone so violently and brought us into this confusion, I move that you will proceed against them, and that the king's gracious intentions may have farther effect, and those only excepted.

primum mobiles （ plural ）

prima mobilia （ plural ）