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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: Kavanaugh always wants to get in that Solomonic pose, and today he split the baby again, leaving the court 5–4 on the constitutional issue but 6–3 on the statutory question.

From Slate • Jun. 30, 2026

Dahlia Lithwick: This is objectively good news in one sense, but also a chillingly close split in a case that should not be hard.

From Slate • Jun. 29, 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

In this week’s Slate Plus bonus episode of Amicus, co-hosts Dahlia Lithwick and Mark Joseph Stern discussed the ruling, FS Credit 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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