An unusual or extraordinary person or thing; rarity.
A rare or unique person or thing.
Origin of rara-avis
- Latin rāra avis rāra feminine of rārus rare avis bird
From American Heritage Dictionary of the English Language, 5th Edition
- From Juvenal's Satires (6.165): Rara avis in terris nigroque simillima cycno ("a bird as rare upon the earth as a black swan").
- Latin rÄra avis (“rare bird"), plural rarae aves