bubble shell

noun

variants or bubble snail

1

: any of a number of marine gastropod mollusks (order Opisthobranchia) having the shell comparatively thin and small with the body whorl enveloping the other whorls (such as members of the Akeridae or of the genus Bulla) see haminoea

2

: a freshwater snail of Physa or a related genus

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!