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[mas-kyuh-luh-nahyz] /ˈmæs kyə ləˌnaɪz/
verb (used with object), masculinized, masculinizing.
Medicine/Medical. to produce certain male secondary sex characteristics in (a female).
to make masculine in character, quality, or appearance:
The presence of two large leather sofas seemed to masculinize the whole room.
Also, especially British, masculinise.
Origin of masculinize
First recorded in 1920-25; masculine + -ize
Related forms
masculinization, noun
demasculinization, noun
demasculinize, verb (used with object), demasculinized, demasculinizing. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for masculinize


to make or become masculine, esp to cause (a woman) to show male secondary sexual characteristics as a result of taking steroids
Derived Forms
masculinization, masculinisation, noun
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
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masculinize in Medicine

masculinize mas·cu·lin·ize (mās'kyə-lə-nīz')
v. mas·cu·lin·ized, mas·cu·lin·iz·ing, mas·cu·lin·iz·es

  1. To give a masculine appearance or character to.

  2. To cause a female to assume masculine characteristics, as through hormonal imbalance.

mas'cu·lin·i·za'tion (-lə-nĭ-zā'shən) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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