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dahl·ia(dăl′yə, däl′-, dāl′-)
Any of several tuberous-rooted plants of the genus Dahlia of the composite family, native to Mexico, Central America, and northern South America and cultivated for their showy, colorful flower heads.
[New Latin Dahlia, genus name, after Anders Dahl (1751-1787), Swedish botanist.]
1. (Plants) any herbaceous perennial plant of the Mexican genus Dahlia, having showy flowers and tuberous roots, esp any horticultural variety derived from D. pinnata: family Asteraceae (composites)
2. (Plants) the flower or root of any of these plants
[C19: named after Anders Dahl, 18th-century Swedish botanist; see -ia]
dahl•ia(ˈdæl 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.
[< New Latin (1791), after Anders Dahl (d. 1789), Swedish botanist; see -ia]
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|Noun||1.||dahlia - 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|
flower - a plant cultivated for its blooms or blossoms
genus Dahlia - genus of perennial tuberous plants of Mexico and Central America