Definition of muricid in US English:

muricid

noun

Zoology
  • A predatory gastropod mollusc of the family Muricidae; a murex.

adjective

Zoology
  • Of or belonging to the family Muricidae.

Origin

Mid 19th century; earliest use found in Smithsonian Institution Annual Reports. From scientific Latin Muricidae, family name from Muric-, Murex + -idae.