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dahlia

American  
[dal-yuh, dahl-, deyl-] / ˈdæl jə, ˈdɑl-, ˈdeɪl- /

noun

dahlias plural
  1. any composite plant of the genus Dahlia, native to Mexico and Central America and widely cultivated for its showy, variously colored flower heads.

  2. the flower or tuberous root of a dahlia.

  3. a pale violet or amethyst color.


adjective

  1. of the color dahlia.

dahlia British  
/ ˈdeɪljə /

noun

  1. 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. the flower or root of any of these plants

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of dahlia

1791; < New Latin, named after Anders Dahl (died 1789), Swedish botanist; see -ia

Vocabulary lists containing dahlia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Dahlia Lithwick: These were incredibly consequential gut punches, two more in a long sequence of brutalizing cases.

From Slate • Jun. 25, 2026

Dahlia and Mark sort through the brutalizing, even lethal implications for asylum seekers and more than 1 million recipients of temporary protected status, or TPS.

From Slate • Jun. 25, 2026

Dahlia Lithwick: In a lot of ways, Justice Neil Gorsuch’s majority opinion becomes an ode to legal marijuana.

From Slate • Jun. 18, 2026

On this week’s Amicus, Dahlia Lithwick unpacks a new Supreme Court decision that vastly expands Louisiana v.

From Slate • Jun. 11, 2026

Dahlia is right about how most Pakistani people, including my parents, pronounce Arabic differently.

From "Amina's Voice" by Hena Khan

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