from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various plants of the genus Trillium, of North America, the Himalaya Mountains, and eastern Asia, usually having a cluster of three leaves and a variously colored, three-petaled flower. Also called birthroot, wake-robin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several perennial flowering plants, of the genus Trillium, having flowers with three petals
from the GNU version of the Collaborative International Dictionary of English
- n. A genus of liliaceous plants; the three-leaved nightshade; -- so called because all the parts of the plant are in threes.
from The Century Dictionary and Cyclopedia
- n. A genus of liliaceous plants, of the tribe Medeoleæ.
- n. A plant of the above genus.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower
New Latin Trillium, genus name, probably from Swedish trilling, triplet (from its three leaves), from obsolete Swedish tri, three, from Old Swedish thrīr.(American Heritage® Dictionary of the English Language, Fourth Edition)