Definition of hyperplasia in English:

hyperplasia

noun

Medicine Biology
  • [mass noun] 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’
    • ‘Water-clear cell hyperplasia is a rare but well-documented cause of primary hyperparathyroidism.’
    • ‘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.’
    • ‘No women were found to have endometrial carcinoma or adenomatous hyperplasia with atypia.’
    • ‘Such factors might include the presence of benign prostatic hyperplasia or prostate cancer.’

Origin

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

Pronunciation:

hyperplasia

/ˌhʌɪpəˈpleɪzɪə/