The Collaborative International Dictionary
Acanthopteri
Acanthopteri \Ac`an*thop"ter*i\, n. pl. [NL., from Gr. ? thorn + ? wing, fin.] (Zo["o]l.) A group of teleostean fishes having spiny fins. See Acanthopterygii.
Wiktionary
acanthopteri
n. (context zoology English) A group of teleostean fishes having spiny fins. See Acanthopterygii.