turritella
noun
tur·ri·tel·la
ˌtərəˈtelə
1
capitalized
: a genus (the type of the family Turritellidae) of marine gastropod mollusks having an elongated turreted shell composed of many whorls with a rounded aperture and a horny multispiral operculum
2
or less commonly turritellid
plural -s
: any mollusk or shell of the genus Turritella or family Turritellidae see screw shell
-lə̇d
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Merriam-Webster unabridged
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