hyperplasia

American  

[hahy-per-play-zhuh, -zhee-uh, -zee-uh] / ˌhaɪ pərˈpleɪ ʒə, -ʒi ə, -zi ə /

noun

Pathology, Biology.

1. abnormal multiplication of cells.

2. enlargement of a part due to an abnormal numerical increase of its cells.

---

hyperplasia British  

/ ˌhaɪpəˈplæzɪə /

noun

1. enlargement of a bodily organ or part resulting from an increase in the total number of cells Compare hypertrophy

---

Other Word Forms

• hyperplastic
  adjective

---

Etymology

Origin of hyperplasia

First recorded in 1860–65; hyper- + -plasia

---

Example Sentences

See Examples For:

hyperplasia

Irritable bowel syndrome, depression, hypertension and benign prostatic hyperplasia were also listed as health conditions Haskins battled.

From Los Angeles Times ● Oct. 7, 2026

Crinetics primarily develops products to treat endocrine disorders, including acromegaly, a rare hormonal disorder caused by the overproduction of growth hormone, and congenital adrenal hyperplasia, a condition that affects the adrenal glands.

From The Wall Street Journal ● Jul. 6, 2026

Neurocrine already markets Crenessity, an oral CRF1 receptor antagonist used to treat congenital adrenal hyperplasia, which is a collection of genetic disorders affecting the adrenal glands.

From MarketWatch ● Apr. 6, 2026

These vessels were encased by CGRP+ sensory nerve fibers and were growing towards the lining fibroblasts in areas of excessive tissue growth, or hyperplasia.

From Science Daily ● Apr. 11, 2024

Microscopically the enlargement would seem to be due rather to hyperplasia than to hypertrophy.

From Anomalies and Curiosities of Medicine by Walter L. (Walter Lytle) Pyle

Random Word

Spin the wheel and learn a new word!

---