Definition of orthorrhaphous in English:

orthorrhaphous

(also orthorhaphous)

adjective

Entomology
  • Relating to or designating the more primitive groups of dipteran flies (formerly constituting the suborder Orthorrhapha), which are characterized by the emergence of the adult from the pupa through a longitudinal or T-shaped split.

Origin

Late 19th century; earliest use found in The Century Dictionary. From scientific Latin Orthorhapha (later Orthorrhapha), former suborder name + -ous.

Pronunciation

orthorrhaphous

/ˌɔːθə(ʊ)ˈrafəs//ɔːˈθɒrəfəs/