osteichthyan
noun
os·​te·​ich·​thy·​an
| \ ˌä-stē-ˈik-thē-ən
\
\
variants:
or less commonly osteichthian
plural osteichthyans
also osteichthians
Definition of osteichthyan
: a fish of the class Osteichthyes : a bony fish
Extant jawed vertebrates, or gnathostomes, fall into two major monophyletic groups, namely chondrichthyans (cartilaginous fishes) and osteichthyans (bony fishes and tetrapods).— Hector Botella et al., Nature, 2 Aug. 2007
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