isospondyli Meaning, Definition & Usage

  1. noun most primitive teleost fishes; all are soft-finned: salmon; trout; herring; shad; sardines; anchovies; whitefish; smelts; tarpon
    order Isospondyli.

WordNet

I`so*spon"dy*li noun plural
Etymology
NL., fr. Gr. 'i`sos equal + , , a vertebra.
Definitions
  1. (Zoöl.) An extensive order of fishes, including the salmons, herrings, and many allied forms.

Webster 1913