dahlia

noun

dahl·​ia ˈdal-yə How to pronounce dahlia (audio) ˈdäl- How to pronounce dahlia (audio)
US also and British usually ˈdāl-
: 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

Examples of dahlia in a Sentence

Recent Examples on the Web
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Dahlia Give sun-loving dahlias a boost, and encourage more growth to keep the plant looking lush. Karen Brewer Grossman, Southern Living, 17 June 2026 Avallone specializes in dahlias and dahlia tubers and sells them to customers across the United States. Stephen Underwood, Hartford Courant, 17 June 2026 What to Grow with Dahlias in Pots A large container can support one dahlia or two or three, depending on their size. Andy Wilcox, Better Homes & Gardens, 16 June 2026 Dinner plate dahlias have enormous blooms that can measure 10 inches across. Ann Hinga Klein, Martha Stewart, 15 June 2026 See All Example Sentences for dahlia

Word History

Etymology

New Latin, genus name, from Anders Dahl †1789 Swedish botanist

First Known Use

1835, in the meaning defined above

Time Traveler
The first known use of dahlia was in 1835

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Cite this Entry

“Dahlia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dahlia. Accessed 25 Jun. 2026.

Kids Definition

dahlia

noun
dahl·​ia ˈdal-yə How to pronounce dahlia (audio) ˈdäl- How to pronounce dahlia (audio)
: any of a genus of American herbs related to the daisies and having brightly colored flower heads and a root that is a tuber

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