Dictionary.net

• A Russian fish (Lucioperca sandre) which yields a valuable oil, called sandre oil, used in the preparation of caviare.

2010 - New Age Dictionary Database
By Oddity Software

• A Russian fish (Lucioperca sandre) which yields a valuable oil, called sandre oil, used in the preparation of caviare.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.