OPISTHOBRANCH
Etymology
Noun
opisthobranch (plural opisthobranches)
(zoology) A gastropod with gills behind the heart, formerly thought to belong to a single group.
Adjective
opisthobranch (not comparable)
(of gills) Placed behind the heart.
Antonym: prosobranch
(of a gastropod) Having gills placed behind the heart.
Antonym: prosobranch
Source: Wiktionary
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Word of the Day
2 April 2025
COVERT
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
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