Definition of opalinid in English:

opalinid

noun

Zoology
  • A protozoan of the group Opalinata, which comprises ciliated organisms parasitic in the intestines of lower vertebrates, especially frogs and toads.

adjective

Zoology
  • Of or relating to the opalinids.

Origin

Late 19th century; earliest use found in William Saville-Kent (1845–1908), marine biologist. From scientific Latin Opalinidae, family name from Opalina, genus name + -idae.

Pronunciation

opalinid

/ˌəʊpəˈlʌɪnɪd/