Definition of hyperplasia in English:

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Pronunciation: /ˌhīpərˈplāZH(ē)ə/


Medicine & Biology
The enlargement of an organ or tissue caused by an increase in the reproduction rate of its cells, often as an initial stage in the development of cancer.
Example sentences
  • Furthermore, increased goblet cell hyperplasia of the small airways was prominent in this model.
  • Smooth enlargement suggests benign hyperplasia; roughness and irregularity suggest the possibility of cancer.
  • Such factors might include the presence of benign prostatic hyperplasia or prostate cancer.


Mid 19th century: from hyper- 'beyond' + Greek plasis 'formation'.

For editors and proofreaders

Syllabification: hy·per·pla·sia

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