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  • titania
    titania
    noun
    synthetic rutile, TiO 2 , used as a gem.
  • Titania
    Titania
    noun
    (in Shakespeare'sMidsummer Night's Dream ) the wife of Oberon and the queen of fairyland.

titania

1 American  
[tahy-tey-nee-uh] / taɪˈteɪ ni ə /

noun

  1. synthetic rutile, TiO 2 , used as a gem.

Titania 2 American  
[ti-tey-nee-uh, tahy-] / tɪˈteɪ ni ə, taɪ- /

noun

  1. (in Shakespeare'sMidsummer Night's Dream ) the wife of Oberon and the queen of fairyland.

  2. Astronomy. one of the moons of Uranus.

Titania 1 British  
/ tɪˈtɑːnɪə /

noun

  1. (in medieval folklore) the queen of the fairies and wife of Oberon

  2. (in classical antiquity) a poetic epithet used variously to characterize Circe, Diana, Latona, or Pyrrha

"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
Titania 2 British  
/ tɪˈtɑːnɪə /

noun

  1. the largest of the satellites of Uranus and the second furthest from the planet

"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
titania 3 British  
/ taɪˈteɪnɪə /

noun

  1. another name for titanium dioxide

"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

Etymology

Origin of titania

From New Latin, dating back to 1920–25; see origin at titanium, -a 4

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.

By embedding a helper enzyme, carbonic anhydrase, into a porous titania structure, the researchers enabled the system to work in a simple bicarbonate solution — similar to sparkling water — without unsustainable additives.

From Science Daily • Nov. 2, 2025

Cubic zirconia and rutile titania could meet demand in theory, but economic modeling by the Columbia team suggests production costs would skyrocket with increased demand.

From Science Daily • Oct. 21, 2025

Proposed alternatives include minerals such as calcium carbonate, alpha alumina, rutile and anatase titania, cubic zirconia, and even diamond.

From Science Daily • Oct. 21, 2025

Pureti and a few other companies have figured out ways to make crystal-clear titania coatings; why isn’t every building we work and live in, and every material good we own, covered in titania?

From Newsweek

That’s because titania pigment is the whitest of whites, with a brightness and ability to refract light that is unmatched in the world of material sciences.

From Newsweek

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.