Definition of pseudogynous in US English:

pseudogynous

adjective

Zoology
  • Designating an animal which is female in form or has female characteristics but does not function reproductively as a female; (Entomology) of or relating to a pseudogyne.

Origin

Mid 19th century; earliest use found in The Zoologist: a miscellany of natural history. From pseudo- + -gynous. In specific use in entomology probably after German pseudogyn; compare pseudogyne, which is first attested slightly later in the specifically sense.