the Sunday word

It's been a while since I've done it and this one was found today in my in-box:

rara avis \RAIR-uh-AY-vis\, noun; plural rara avises \RAIR-uh-AY-vuh-suhz\ or rarae aves \RAIR-ee-AY-veez\:

A rare or unique person or thing.

Nice way to say it huh?