- any of a genus (Dahlia) of perennial plants of the composite family, with tuberous roots and large, showy flower heads in various bright colors, native to Mexico and Central America
- the flower of this plant
Origin of dahliaModL, after A. Dahl, 18th-c. Swedish botanist
Origin of dahliaNew Latin Dahlia, genus name, after Anders Dahl, (1751–1787), Swedish botanist.
Named 1791 by Spanish botanist Antonio José Cavanilles for Anders Dahl.
- A female given name.
From the flower dahlia in the 19th century.