Definition of periproct in English:

periproct

noun

Zoology
  • In an echinoid: a small circular membranous region on the aboral surface containing the anus and a variable number of small embedded plates.

Origin

Mid 19th century; earliest use found in American Naturalist. From peri- + ancient Greek πρωκτός anus.

Pronunciation

periproct

/ˈpɛrɪprɒkt/