The Collaborative International Dictionary
Ctenoid
Ctenoid \Cte"noid\ (t[=e]"noid or t[e^]n"oid), a. (Zo["o]l.)
Having a comblike margin, as a ctenoid scale.
Pertaining to the Ctenoidei. -- n. A ctenoidean.
Wiktionary
ctenoid
a. 1 Having a toothed margin, usually fish scales 2 comb-like in shape. n. A ctenoidean.
Usage examples of "ctenoid".
I tried to follow Agassiz's scheme of division into the order of ctenoids and ganoids, with the result that I found one of my species of side-swimmers had cycloid scales on one side and ctenoid on the other.