Bullidae

plural noun

Bul·​li·​dae

ˈbu̇ləˌdē

: a family of gastropod mollusks (order Opisthobranchia) including a number of typical bubble shells

Word History

Etymology

New Latin, from Bulla, type genus (from Latin, bubble) + -idae (head)

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!