turritella
noun
tur·ri·tel·la
| \ ˌtərəˈtelə\
Definition of turritella
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 \ -lə̇d \ plural -s
: any mollusk or shell of the genus Turritella or family Turritellidae — see screw shell
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