Definition of ophiurid in US English:

ophiurid

noun

Zoology
  • An echinoderm of the group comprising the brittlestars, now regarded as the class Ophiuroidea.

adjective

Zoology
  • Of or relating to the family Ophiuridae or the class Ophiuroidea; of an ophiurid.

Origin

Mid 19th century; earliest use found in American Naturalist. From scientific Latin Ophiuridae, order name from scientific Latin Ophiura + -idae.