(archaic) Any member of the former group Ctenoidei; a ray-finned fish.

plural of ctenocyst

(zoology) An organ of the Ctenophora, possibly a sensory organ. It is a black speck in the depression on the aboral side of the body.

plural of ctenidium

(zoology) Any spider in the family Ctenizidae.

plural of ctenizid

plural of ctenochasmatid

plural of ctenomyid

plural of ctenid

(zoology) Any rodent of the family Ctenomyidae.