nephridiostome
(nɛˈfrɪdɪəʊstəʊm)
[f. nephridium + -stome, ad. stoma.]
= nephrostome s.v. nephro-.
| 1902 Encycl. Brit. XXXIII. 882/2 The Hesionidæ have compound organs, serving both as excretory and as genital ducts, formed by the grafting of the coelomostome on to the nephridiostome. 1963 R. P. Dales Annelids i. 29 In many other polychaetes..and in oligochaetes and leeches, an open funnel or nephridiostome is formed. |