Definition of nephridiostome in English:

nephridiostome

noun

Zoology
rare
  • The opening between a nephridium and the coelom; = nephrostome.

Origin

Early 20th century; earliest use found in Encyclopaedia Britannica. From nephridium + -o- + -stome.

Pronunciation

nephridiostome

/nɪˈfrɪdɪəstəʊm/