opisthobranch

/ษตหˆpษชsฮธษ™bษนรฆล‹k/

IPA: /OW1 P IY0 S TH AH0 B R AE1 N CH/

noun
  1. 1

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

adjective
  1. 1

    (of gills) Placed behind the heart.

  2. 2

    (of a gastropod) Having gills placed behind the heart.

Source: https://en.wiktionary.org/wiki/opisthobranch