prostomium

[ proh-stoh-mee-uhm ]

noun,plural pro·sto·mi·a [proh-stoh-mee-uh]. /proʊˈstoʊ mi ə/.
  1. the unsegmented, preoral portion of the head of certain lower invertebrates.

Origin of prostomium

1
1865–70; <New Latin <Greek prostómion mouth. See pro-2, stoma, -ium

Other words from prostomium

  • pro·sto·mi·al, adjective

Words Nearby prostomium

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How to use prostomium in a sentence

British Dictionary definitions for prostomium

prostomium

/ (prəʊˈstəʊmɪəm) /


nounplural -mia (-mɪə)
  1. the lobe at the head end of earthworms and other annelids: bears tentacles, palps, etc, or forms part of a sucker or proboscis

Origin of prostomium

1
via New Latin from Greek prostomion mouth

Derived forms of prostomium

  • prostomial, adjective

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