Definition of megalonychid in English:

megalonychid

adjective

  • Designating or relating to extinct ground sloths of the family Megalonychidae.

noun

  • A ground sloth of the family Megalonychidae.

Origin

1940s; earliest use found in Science. From scientific Latin Megalonychidae, family name, from Megalonych-, taken as stem (after ancient Greek ὄνυχ-, ὄνυξ) of Megalonyx + -idae.

Pronunciation

megalonychid

/ˌmɛɡələˈnʌɪkɪd/