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hyperplasia

American  
[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.


hyperplasia British  
/ ˌhaɪpəˈplæzɪə, ˌhaɪpəˈplæstɪk /

noun

  1. enlargement of a bodily organ or part resulting from an increase in the total number of cells Compare hypertrophy

"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

Other Word Forms

  • hyperplastic adjective

Etymology

Origin of hyperplasia

First recorded in 1860–65; hyper- + -plasia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Sebaceous hyperplasia is most common in middle-aged or older people, particularly those with fair skin who have had a lot sun exposure.

From Washington Times

There was also evidence of pre-cancerous changes in brain cells called hyperplasia.

From MSNBC

Local news site Globoesporte said Pele had surgery on Tuesday for a prostate condition known as hyperplasia, which the site said increases the risk of a urinary infection.

From Reuters

Under the current guidelines from the American Cancer Society, Smith said, women with atypical hyperplasia are put into an intermediate-risk group.

From US News

Hospitals in Pennsylvania are already required to screen for phenylketonuria, maple syrup urine disease, sickle-cell disease, galactosemia, congenital adrenal hyperplasia and primary congenital hypothyroidism.

From Washington Times