from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various New World herbs of the genus Tradescantia, especially T. virginiana, having three-petaled blue or purple flowers with six hairy stamens.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A perennial plant of the Tradescantia genus, found in clumps in woodland and meadow.
from the GNU version of the Collaborative International Dictionary of English
- n. An American endogenous plant (Tradescantia Virginica), with long linear leaves and ephemeral blue flowers. The name is sometimes extended to other species of the same genus.
from The Century Dictionary and Cyclopedia
- n. A plant of the genus Tradescantia, especially T. Virginica, the common garden species.
- n. By extension, any plant of the order Commelinaceæ; specifically, Commelina eælestis, a blue-flowered plant from Mexico.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any plant of the family Commelinaceae
Probably from its thin, hairy stamens.(American Heritage® Dictionary of the English Language, Fourth Edition)
spider + wort (Wiktionary)