Bubble shell

noun

Definitions

1.nounA marine univalve shell of the genus Bulla and certain shells of similar appearance of the now disused order Tectibranchiata of molluscs.

2.nounAny of the headshield slug of genus Bulla, belonging to the order Cephalaspidea of gastropods.

3.nounAny of the family Janthinidae of pelagic sea snails.

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