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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Each Virtuoso® dahlia color offers a different petal shape. Sophia Beams, Better Homes & Gardens, 6 May 2026 In early May, the soil has warmed up enough for dahlias. Brandee Gruener, Southern Living, 1 May 2026 Flowers like dahlias, roses, and hydrangeas are also vulnerable to grub infestations. Sj McShane, Martha Stewart, 18 Apr. 2026 And tender perennials that would die in a frost — dahlias, geraniums, peppers — can overwinter safely and come back stronger the following spring with an extra month or more of harvesting. Lauren Jarvis-Gibson, Kansas City Star, 1 Apr. 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 10 May. 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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