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oncology

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on⋅col⋅o⋅gy

  [ong-kol-uh-jee]
Use oncology in a Sentence
–noun
1. the branch of medical science dealing with tumors, including the origin, development, diagnosis, and treatment of malignant neoplasms.
2. the study of cancer.
Origin:
1855–60; onco- + -logy

Related forms:
on⋅co⋅log⋅ic  [ong-kuh-loj-ik] , on⋅co⋅log⋅i⋅cal, adjective
on⋅col⋅o⋅gist, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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on·col·o·gy   (ŏn-kŏl'ə-jē, ŏng-)   
n.  The branch of medicine that deals with tumors, including study of their development, diagnosis, treatment, and prevention.

[Greek onkos, mass, tumor; see nek-2 in Indo-European roots + -logy.]
on'co·log'i·cal (-kə-lŏj'ĭ-kəl), on'co·log'ic (-lŏj'ĭk) adj., on·col'o·gist n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

oncology [(ong-kol-uh-jee, on-kol-uh-jee)]

The branch of medicine devoted to the study, treatment, and cure of cancer.

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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Word Origin & History

oncology 
1857, coined in Eng. from Mod.L. onco- "tumor," from Gk. onkos "mass, bulk" + Eng. -logy "science or study of," from Gk. logia, from logos "word."
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: on·col·o·gy
Pronunciation: än-'käl-&-jE, ä[ng]-
Function: noun
Inflected Form: plural -gies
: the study of tumors —on·co·log·i·cal /"ä[ng]-k&-'läj-i-k&l/ also on·co·log·ic /-ik/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

oncology on·col·o·gy (ŏn-kŏl'ə-jē, ŏng-)
n.
The branch of medicine dealing with the physical, chemical, and biological properties of tumors, including study of their development, diagnosis, treatment, and prevention.

on'co·log'i·cal (-kə-lŏj'ĭ-kəl) or on'co·log'ic (-lŏj'ĭk) adj.
on·col'o·gist 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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