triploblastica

plural noun

trip·​lo·​blas·​ti·​ca

often capitalized

: animals having three germ layers

—used when these are held to form a natural group comprising the worms and all higher forms

Word History

Etymology

New Latin, from tripl- + Greek blastika, plural of blastikos budding, from blast- + -ikos -ic

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!