Definition of metanephridium in English:

metanephridium

Pronunciation /ˌmɛtənɪˈfrɪdɪəm/ /ˌmɛtənɛˈfrɪdɪəm/

noun

Zoology
  • A nephridium that opens into the coelomic cavity, typically via a ciliated funnel.

Origin

1930s; earliest use found in The Biological Bulletin. From German Metanephridium from meta- + Nephridium.