rara avis

noun ra·ra avis \ˌrer-ə-ˈā-vəs, ˌrär-ə-ˈä-wəs\

plural ra·ra avis·es \-ˈā-və-səz\ or ra·rae aves \ˌrär-ˌī-ˈä-ˌwās\

Definition of RARA AVIS

: rarity 2

Latin, rare bird

First Known Use: 1607

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