Variant of nephridium
noun pl. nephridia
- a waste-discharging tubule with an external excretory pore, found in many invertebrates, as in worms, mollusks, etc.
- any of the excretory tubules of the pronephros of a vertebrate embryo
Origin: Modern Latin ; from Classical Greek nephridion, diminutive of nephros, kidney: see nephro-
- nephridial adjective