Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

armillary sphere

play
noun ar·mil·la·ry sphere \ˈär-mə-ˌler-ē-, är-ˈmi-lə-rē-\

Definition of armillary sphere

  1. :  an old astronomical instrument composed of rings showing the positions of important circles of the celestial sphere



Origin and Etymology of armillary sphere

French sphère armillaire, from Medieval Latin armilla, from Latin, bracelet, iron ring, from armus shoulder — more at arm


First Known Use: 1664


Learn More about armillary sphere


Seen and Heard

What made you want to look up armillary sphere? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a simplified speech bridging languages

Get Word of the Day daily email!