/perr"koyd/ , adj.
1. belonging to the Percoidea, a group of acanthopterygian fishes comprising the true perches and related families, and constituting one of the largest natural groups of fishes.
2. resembling a perch.
Also, percoidean /peuhr koy"dee euhn/ .
[ 1830-40; perc ( a ) PERCH 2 + -OID ]