jan·​thi·​na | \ ˈjan(t) thənə \

Definition of janthina

1 capitalized : the type genus of Janthinidae comprising pelagic snails of warm seas that have a thin spiral purple shell, a large head, and protrusible gills
2 plural -s : any snail of the genus Janthina

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History and Etymology for janthina

New Latin, from Latin ianthina, feminine of ianthinus violet-blue, from Greek ianthinos, from ion violet + anthos flower

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Cite this Entry

“Janthina.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/janthina. Accessed 7 December 2019.

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