Definition of naidid in English:

naidid

Pronunciation /ˈneɪɪdɪd/

noun

Zoology
  • A worm of the family Naididae, which comprises small aquatic (mostly freshwater) oligochaetes.

adjective

Zoology
  • Belonging to, characteristic of, or designating the family Naididae of worms.

Origin

1930s; earliest use found in Ecological Monographs. From scientific Latin Naididae, family name from Naid-, stem of Nais, genus name + -idae. Compare German Naididen, plural.