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hyperplasia

[hahy-per-pley-zhuh, -zhee-uh, -zee-uh] /ˌhaɪ pərˈpleɪ ʒə, -ʒi ə, -zi ə/
noun, Pathology, Biology
1.
abnormal multiplication of cells.
2.
enlargement of a part due to an abnormal numerical increase of its cells.
Origin
1860-1865
1860-65; hyper- + -plasia
Related forms
hyperplastic
[hahy-per-plas-tik] /ˌhaɪ pərˈplæs tɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for hyperplasia
  • When the endothelium is damaged, it leads to a condition called intimal hyperplasia--an abnormal growth of smooth muscle cells.
  • Correcting his enlarged prostate, or benign prostatic hyperplasia, requires a three-day hospital stay.
  • hyperplasia is a general medical term referring to an abnormal increase in cells.
  • The causes of benign prostatic hyperplasia are not fully understood.
British Dictionary definitions for hyperplasia

hyperplasia

/ˌhaɪpəˈplæzɪə/
noun
1.
enlargement of a bodily organ or part resulting from an increase in the total number of cells Compare hypertrophy
Derived Forms
hyperplastic (ˌhaɪpəˈplæstɪk) adjective
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 hyperplasia
n.

1861, from Modern Latin hyperplasia, from hyper- + -plasia.

Online Etymology Dictionary, © 2010 Douglas Harper
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hyperplasia in Medicine

hyperplasia hy·per·pla·sia (hī'pər-plā'zhə)
n.
An abnormal increase in cells in a tissue or organ, excluding tumor formation, whereby the bulk of the tissue or organ is increased.


hy'per·plas'tic (-plās'tĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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