Trilliaceae

plural noun

Tril·​li·​a·​ce·​ae

ˌtrilēˈāsēˌē

in some classifications

: a small family of herbs (order Liliales) that have perennial rootstocks, entire leaves variously arranged, and often showy flowers of 3 petals and 3 sepals with 6 stamens followed by a globose or 3-lobed berry, comprise the trilliums and closely related plants, and are usually included in the family Liliaceae

Word History

Etymology

New Latin, from Trillium, type genus + -aceae

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!