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metaplasia

[met-uh-pley-zhuh, -zhee-uh] /ˌmɛt əˈpleɪ ʒə, -ʒi ə/
noun, Pathology
1.
the transformation of one type of tissue into another.
Origin
1885-1890
1885-90; meta- + -plasia
Related forms
metaplastic
[met-uh-plas-tik] /ˌmɛt əˈplæs tɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for metaplasia

metaplasia

/ˌmɛtəˈpleɪzɪə/
noun
1.
the transformation of one kind of tissue into a different kind
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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metaplasia in Medicine

metaplasia met·a·pla·sia (mět'ə-plā'zhə, -zhē-ə)
n.

  1. Normal transformation of tissue from one type to another, as in the ossification of cartilage to form bone.

  2. Transformation of cells from a normal to an abnormal state.

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

in zoology, the conversion of one type of living cell or group of cells into another as a means of regeneration. For example, the damaged or removed lens of a salamander eye is replaced through the transformation of nearby pigmented iris cells into lens cells. The regeneration of brain tissue from epidermis in annelid worms is another well-documented example of metaplasia. The term metaplasia also refers to the abnormal replacement of cells of one type by those of another type.

Learn more about metaplasia with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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