SG Heritage Dictionary

Word of the Day: Catachrestical

Acanthopterygious [\N] Webster's Dictionary 1828

1. ACANTHOPTERYG'IOUS , a [Gr. a thorn, and a little feather, from a feather.]

2. In zoology, having back fins which are hard, bony and pricky, a term applied to certain fishes.

Acanthopterygious [Adjective] Webster's Dictionary 1913

Having fins in which the rays are hard and spinelike; spiny-finned.