opisthobranch

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English[edit]

Etymology[edit]

From Ancient Greek ὄπισθεν (ópisthen, behind) + βράγχια (bránkhia, gills).

Pronunciation[edit]

  • IPA(key): /ɵˈpɪsθəbɹæŋk/

Noun[edit]

opisthobranch (plural opisthobranchs)

  1. (zoology) A gastropod with gills behind the heart, formerly thought to belong to a single group.

Adjective[edit]

opisthobranch (not comparable)

  1. (of gills) Placed behind the heart.
    Antonym: prosobranch
  2. (of a gastropod) Having gills placed behind the heart.
    Antonym: prosobranch