mastectomy

[ma-stek-tuh-mee]
noun, plural mastectomies. Surgery.
the operation of removing all or part of the breast or mamma.
Also called mammectomy.


Origin:
1920–25; mast- + -ectomy

postmastectomy, adjective
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Collins
World English Dictionary
mastectomy (mæˈstɛktəmɪ)
 
n , pl -mies
the surgical removal of a breast

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

mastectomy
1923, formed from Gk. ectome "a cutting" + mastos "woman's breast," from base madan "to be wet, to flow," from PIE *mad- "wet, moist, dripping" (cf. L. madere "be moist;" Skt. mad- "bubble, be glad," medah "fat, marrow," madati "is drunk;" Alb. mend "suckle").
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

mastectomy mas·tec·to·my (mā-stěk'tə-mē)
n.
Surgical removal of all or part of a breast, sometimes including excision of the underlying pectoral muscles and regional lymph nodes, usually performed as a treatment for cancer. Also called mammectomy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
mastectomy   (mā-stěk'tə-mē)  Pronunciation Key 
Surgical removal of all or part of a breast, performed as a treatment for cancer. ◇ A radical mastectomy includes excision of the underlying pectoral muscles and regional lymph nodes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
mastectomy [(ma-stek-tuh-mee)]

The surgical removal of a breast.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
The number of deaths has decreased over the years but this early mastectomy is probably the cure for cancer.
It is used for several weeks following lumpectomy or partial mastectomy, and sometimes after full mastectomy.
She had a radical mastectomy, chemo and radiation therapy, and a bone-marrow transplant to restore her immune system.
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