Cte'noid (tē'noid or tĕn'oid) adjective (Zoology) (a) Having a comblike margin, as a ctenoid scale . (b) Pertaining to the Ctenoidei. -- noun A ctenoidean. Found on http://www.encyclo.co.uk/webster/C/198
Ctenoid is a term applied to the scales of fishes when they are jagged or pectinated on the edge like the teeth of a comb, as in the perch, flounder, and turbot. Found on http://www.probertencyclopaedia.com/browse/BCA.HTM