nephridium

noun ne·phrid·i·um \ ni-ˈfri-dē-əm \

Definition of nephridium

plural nephridia play \ni-ˈfri-dē-ə\

: a tubular glandular excretory organ characteristic of various invertebrates

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nephridial

play \ni-ˈfri-dē-əl\ adjective

Origin and Etymology of nephridium

New Latin

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First Known Use: 1877

in the meaning defined above

See Words from the same year

Medical Dictionary

nephridium

noun ne·phrid·i·um \ ni-ˈfrid-ē-əm \

medical Definition of nephridium

plural -ia play \-ē-ə\

: an excretory organ that is characteristic of various coelomate invertebrates (as annelid worms, mollusks, brachiopods, and some arthropods), occurs paired in each body segment or as a single pair serving the whole body, typically consists of a tube opening at one end into the coelom and discharging at the other end on the exterior of the body, is often lengthened and convoluted, and has glandular walls

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