noun, genitive Cir·ci·ni [sur-suh-nahy] /ˈsɜr səˌnaɪ/. Astronomy.
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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noun Latin genitive Circini (ˈsɜːsɪˌnaɪ)
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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