sterlet
Concise Oxford English Dictionary © 2008 Oxford University Press:
sterlet /ˈstəːlɪt/
▶noun a small sturgeon of the Danube basin and Caspian Sea area, farmed and fished for its flesh and caviar. [Acipenser ruthenus.]
– origin C16: from Russ. sterlyad′.
'sterlet' also found in these Oxford entries:

