from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of several plants of the genus Dahlia native to the mountains of Mexico, Central America, and Colombia, having tuberous roots and showy, rayed, variously colored flower heads.
- n. The flower head of one of these plants.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any plant of the genus Dahlia, tuberous perennial flowering plants native to Mexico.
from the GNU version of the Collaborative International Dictionary of English
- n. A genus of plants native to Mexico and Central America, of the order Compositæ; also, any plant or flower of the genus. The numerous varieties of cultivated dahlias bear conspicuous flowers which differ in color.
from The Century Dictionary and Cyclopedia
- n. A genus of plants, natural order Compositæ, of which several species are known, all natives of Mexico and Central America.
- n. [lowercase] A plant of the genus Dahlia.
- n. [lowercase] In dyeing, a violet coal-tar color consisting of the ethyl and methyl derivatives of rosaniline.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of several plants of or developed from the species Dahlia pinnata having tuberous roots and showy rayed variously colored flower heads; native to the mountains of Mexico and Central America and Colombia
New Latin Dahlia, genus name, after Anders Dahl (1751-1787), Swedish botanist.(American Heritage® Dictionary of the English Language, Fourth Edition)
Named 1791 by Spanish botanist Antonio José Cavanilles for Anders Dahl. (Wiktionary)