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An abnormal increase in the number of cells in a tissue or organ, with consequent enlargement of the part or organ.

hy′per·plas′tic (-plăs′tĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Pathology) enlargement of a bodily organ or part resulting from an increase in the total number of cells. Compare hypertrophy
hyperplastic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌhaɪ pərˈpleɪ ʒə, -ʒi ə, -zi ə)

1. abnormal multiplication of cells.
2. enlargement of a part due to an abnormal numerical increase of its cells.
hy`per•plas′tic (-ˈplæs tɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hyperplasia - abnormal increase in number of cells
dysplasia - abnormal development (of organs or cells) or an abnormal structure resulting from such growth
benign prostatic hyperplasia, BPH - enlarged prostate; appears to be part of the natural aging process
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n. hiperplasia, proliferación excesiva de células normales en un tejido.
English-Spanish Medical Dictionary © Farlex 2012


n hiperplasia; benign prostatic— hiperplasia prostática benigna; congenital adrenal — hiperplasia suprarrenal congénita
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Future directions in the study and management of congenital adrenal hyperplasia due to 21-hydroxylase deficiency.
Intravascular papillary endothelial hyperplasia (IPEH) (Masson's hemangioma or Masson's tumor) is an unusual benign vascular disease accounting for approximately 2% of all vascular tumors of the skin and the subcutaneous tissue.
Hyperplasia of the mandibular coronoid process (HCP) is a rare condition, which is characterized by cell growth of a histologically normal bone, and whose symptoms increase gradually [4].
Postmenopausal uterine bleeding is also seen in a considerable number of patients who come with this complaint but are actually suffering from endometrial hyperplasia. This study was designed to determine the frequency of various morphological lesions as causes of bleeding in postmenopausal women.
Thymic lymphoid hyperplasia (TLH) is very common in patients with myasthenia gravis.
Lasmar [6] found that endometrial polyps larger than 1.5 cm were associated with hyperplasia, while a separate report by Wang et al.
Reactive lymphoid hyperplasia, a proliferation of benign, polyclonal lymphocytes, forming localized mass-like lesions, can present in many organs of the body and mimic primary or secondary malignancies [1].
The patient was previously diagnosed with hypospadias and congenital adrenal hyperplasia (CAH) but has been without treatment for 3 years, due to lack of insurance.
Hyperplasia is found in up to 16% and endometrial carcinoma in fewer than 10% of postmenopausal patients undergoing biopsy.
First, in the introduction, the authors reported that thymectomy is not therapeutic for thymic hyperplasia. This information is inaccurate because, although myasthenia gravis is an exclusion criterion, Wolfe et al.
Pseudoangiomatous stromal hyperplasia (PASH) is a benign proliferative lesion of the breast stroma characterized by slit-like pseudovascular spaces lined by endothelial-like spindle cells.