Definition of monacanthid in English:

monacanthid

Pronunciation /mɒnəˈkanθɪd/

adjective

Zoology
  • Of or relating to the family Monacanthidae (sometimes included within the family Balistidae), which comprises the filefishes.

noun

Zoology
  • A fish of the family Monacanthidae; a filefish.

Origin

Late 19th century (in an earlier sense).