n.
Pronunciation: ' dal-y ə , ' däl-, U.S. also & Brit usu ' d ā l-
Function: noun
Etymology: New Latin, genus name, from Anders Dahl † 1789 Swedish botanist
Date: 1835
: any of a genus ( Dahlia ) of American tuberous-rooted composite herbs having opposite pinnate leaves and rayed flower heads and including many that are cultivated as ornamentals