Definition of proctodeal in English:

proctodeal

(also proctodaeal)

Pronunciation /ˌprɒktə(ʊ)ˈdiːəl/

adjective

  • 1Zoology Embryology
    Of or relating to the proctodeum.

  • 2Entomology
    Among social insects: of or relating to the feeding of an insect from the hindgut of another.

Origin

Late 19th century; earliest use found in Quarterly Journal of Microscopical Science. From proctodeum + -al.