primum mobile

Fetched 2026-10-26 (cache).

Synonyms: primum mobiles

Antonyms: primum mobiles

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|astronomy|historical}} The [[outermost]] [[celestial sphere]] of the [[heavens]] in [[Ptolemaic]] [[astronomy]], which was [[believe]]d to [[cause#Verb|cause]] all the [[inner]] spheres to [[rotate]].
2. {{lb|en|chiefly|philosophy|theology}} The [[prime mover]] or {{l|en|first cause|t=an [[initial#Adjective|initial]] [[cause#Noun|cause]] from which all other causes and [[effect#Noun|effects]] [[follow]]}}.
3. {{lb|en|by extension}} The person or thing that is the [[main#Adjective|main]] [[impetus]] for some [[action]]; a [[driving force]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.