Dictionary.com
definitions

tonsillectomy

[ton-suh-lek-tuh-mee]

noun, plural ton·sil·lec·to·mies. Surgery.

the operation of excising or removing one or both tonsils.

RELATED CONTENT

Misspelling of the Year 2013
To explore the psyche of a people, do not look at what they do–look at what they do wrong. Today, we introduce the Misspelling of the Year. A word that was looked up significantly more this year than the year before. A word with lots of different misspellings. A word in the news. The word: furlough. In 2013, Dictionary.com saw tens of thousands of lookups …
READ MORE

Origin of tonsillectomy

1900–05; < Latin tōnsill(ae) tonsils + -ectomy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for tonsillectomy

tonsillectomy

noun plural -mies

surgical removal of the palatine tonsils
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
Word Origin and History for tonsillectomy
n.

1899, from tonsil + -ectomy. A hybrid with a Greek ending. A correct formation all from Greek would be amygdalectomy.

Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for tonsillectomy

tonsillectomy

[tŏn′sə-lĕk′tə-mē]

n.

Surgical removal of tonsils or a tonsil.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for tonsillectomy

tonsillectomy

[tŏn′sə-lĕk′tə-mē]

Surgical removal of the tonsils.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.