Meaning of hyperplasia

hy•per•pla•sia

Pronunciation: (hī"pur-plā'zhu, -zhē-u, -zē-u), [key]
— n. Pathol., Biol.
  1. abnormal multiplication of cells.
  2. enlargement of a part due to an abnormal numerical increase of its cells.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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