transcription, транскрипция: [ ˈprī-məm-ˈmō-bə-lē, ˈprē- ]
noun
( plural primum mobiles )
Etymology: Middle English, from Medieval Latin, literally, first moving thing
Date: 15th century
: the outermost concentric sphere conceived in medieval astronomy as carrying the spheres of the fixed stars and the planets in its daily revolution