opisthobranch

English

Etymology

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

Pronunciation
  • IPA(key): /ɵˈpɪsθəbɹæŋk/

Noun

opisthobranch (plural opisthobranchs)

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

Adjective

opisthobranch (not comparable)

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