mastectomy

[ ma-stek-tuh-mee ]
/ mæˈstɛk tə mi /

noun, plural mas·tec·to·mies.Surgery.

the operation of removing all or part of the breast or mamma.

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Also called mammectomy.

Origin of mastectomy

First recorded in 1920–25; mast- + -ectomy

OTHER WORDS FROM mastectomy

post·mas·tec·to·my, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for mastectomy

British Dictionary definitions for mastectomy

mastectomy
/ (mæˈstɛktəmɪ) /

noun plural -mies

the surgical removal of a breast
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

Medical definitions for mastectomy

mastectomy
[ mă-stĕktə-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.mammectomy
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for mastectomy

mastectomy
[ mă-stĕktə-mē ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for mastectomy

mastectomy
[ (ma-stek-tuh-mee) ]

The surgical removal of a breast.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.