What do a.m. and p.m. stand for?


[luhm-pek-tuh-mee] /lʌmˈpɛk tə mi/
noun, plural lumpectomies.
the surgical removal of a breast cyst or tumor.
Origin of lumpectomy
1970-75; lump1 + -ectomy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for lumpectomy
  • She had a lumpectomy, followed by a brutal course of radiation and chemotherapy.
  • Nearly half of lumpectomy patients who had second operations may not have needed them, a new study finds.
British Dictionary definitions for lumpectomy


noun (pl) -mies
the surgical removal of a tumour in a breast
Word Origin
C20: from lump1 + -ectomy
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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Word Origin and History for lumpectomy

1971, from lump (n.), coined on model of mastectomy.

Online Etymology Dictionary, © 2010 Douglas Harper
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lumpectomy in Medicine

lumpectomy lump·ec·to·my (lŭm-pěk'tə-mē)
See tylectomy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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