Definition of chromis
: any of a large genus (Chromis) of damselfish including some commonly kept in tropical aquariums You'll never be able to count all the brown and blue chromis swimming over your head. — Nick Lucey, Rodale's Scuba Diving, August 1997 We then part a school of brilliant blue chromis fish darting about in pursuit of tiny planktonic prey. — Joseph E. Neigel and John C. Avise, Natural History, December 1984
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First Known Use of chromis
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