Definition of microlepidopteran in US English:

microlepidopteran

adjective

Entomology
  • Of or relating to the microlepidoptera.

noun

Entomology
  • A moth regarded as belonging to the microlepidoptera.

Origin

Late 19th century; earliest use found in The Century Dictionary. From microlepidoptera + -an.

Pronunciation

microlepidopteran

/ˌmʌɪkrə(ʊ)lɛpɪˈdɒpt(ə)rən/