Osmeterium definition

ŏzmĭ-tîrē-əm
Frequency:
An eversible organ behind the head of certain caterpillars, containing strong-smelling chemicals that deter predators.
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(zoology) One of a pair of scent organs in the larvae of certain swallowtail butterflies.
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Alternative Forms

Alternative Form of osmeterium - osmaterium

Other Word Forms

Noun

Singular:
osmeterium
Plural:
osmeteria

Origin of osmeterium

  • New Latin osmētērium from Greek osmē smell

    From American Heritage Dictionary of the English Language, 5th Edition

  • New Latin, from Ancient Greek ὀσμή (osmÄ“, “smell"), ὀσμητός (osmÄ“tos, “smelled").

    From Wiktionary