Definition of hyperplasia in English:

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Pronunciation: /ˌhʌɪpəˈpleɪzɪə/


[mass noun] 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: hyperplasia of the endocrine cells [count noun]: the hyperplasias regressed in five patients
More 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

Line breaks: hyper|pla¦sia

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