Definition of plethodontid in US English:

plethodontid

noun

Zoology
  • A lungless salamander of the family Plethodontidae.

adjective

Zoology
  • Of or relating to the family Plethodontidae of lungless salamanders.

Origin

1920s; earliest use found in American Naturalist. From scientific Latin Plethodontidae, family name from Plethodont-, taken as stem (after ancient Greek ὀδοντ-, ὀδούς tooth) of Plethodon, genus name + -idae.

Pronunciation

plethodontid

/ˌplɛθəˈdɒntɪd/