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magnesia

1 American  
[mag-nee-zhuh, -shuh] / mægˈni ʒə, -ʃə /

noun

  1. a white, tasteless substance, magnesium oxide, MgO, used in medicine as an antacid and laxative.

Magnesia 2 American  
[mag-nee-shee-uh, -zhee-uh] / mægˈni ʃi ə, -ʒi ə /

noun

  1. ancient name of Manisa.

magnesia British  
/ mæɡˈniːʃə, mæɡˈniːsɪk /

noun

  1. another name for magnesium oxide

"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
magnesia Scientific  
/ măg-nē′zhə /

  1. A white powder with a very high melting point. It is used to make heat-resistant materials, electrical insulators, cements, fertilizer, and plastics. It is also used in medicine as an antacid and laxative. Chemical formula: MgO.

Other Word Forms

  • magnesian adjective

Etymology

Origin of magnesia

1350–1400; Middle English: philosophers' stone < Medieval Latin magnēsia < Greek ( hē ) Magnēsía ( líthos ) (the stone) of Magnesia; sense development obscure

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.