Circinus

[sur-suh-nuh s]
noun, genitive Cir·ci·ni [sur-suh-nahy] /ˈsɜr səˌnaɪ/. Astronomy.
  1. the Compasses, a small southern constellation between Triangulum and Centaurus.

Origin of Circinus

Borrowed into English from Latin around 1830–40
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British Dictionary definitions for circinus

Circinus

noun Latin genitive Circini (ˈsɜːsɪˌnaɪ)
  1. a small faint constellation in the S hemisphere close to Centaurus and the Southern Cross

Word Origin for Circinus

C19: from Latin, a pair of compasses
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