Definitions for dahliaˈdæl yə, ˈdɑl-; esp. Brit. ˈdeɪl-
Random House Webster's College Dictionary
dahl•iaˈdæl yə, ˈdɑl-; esp. Brit. ˈdeɪl-(n.)(pl.)-ias.
any composite plant of the genus Dahlia, native to Mexico and Central America, having tuberous roots and showy flowers.
Origin of dahlia:
< NL (1791), after Anders Dahl (d. 1789), Swedish botanist; see -ia
dahlia, Dahlia pinnata(noun)
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
Any plant of the genus Dahlia, tuberous perennial flowering plants native to Mexico.
Origin: Named 1791 by Spanish botanist Antonio José Cavanilles for Anders Dahl who discovered it in Mexico in 1788.
a genus of plants native to Mexico and Central America, of the order Compositae; also, any plant or flower of the genus. The numerous varieties of cultivated dahlias bear conspicuous flowers which differ in color
U.S. National Library of Medicine
A plant genus of the family ASTERACEAE that contains antifungal plant defensin.