Definition of adultoid in English:

adultoid

noun

Biology
  • An insect that has many features of an adult form but is not a typical imago.

adjective

Biology
  • Designating or characteristic of such an insect.

Origin

1940s. From adult + -oid.

Pronunciation:

adultoid

/ˈadʌltɔɪd//əˈdʌltɔɪd/