prostomium

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noun

The portion of the head of an annelid situated in front of the mouth.

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Meanings

nounprostomium (plural prostomia)

plural prostomia

  1. biologyThe portion of the head of an annelid situated in front of the mouth.

Synonyms & antonyms

Also see
acron

Origin

From Ancient Greek, meaning "before the mouth".

Full word history & related roots →
Cite this entry
APA

prostomium. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/prostomium

MLA

“prostomium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/prostomium. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “prostomium,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/prostomium.

Source: prostomium on Wiktionary, CC BY-SA 4.0.