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1. of or pertaining to, or arising through the action of, many factors.
2. in genetics, arising as the result of the interaction of several genes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. Involving, dependent on, or controlled by several factors.
2. Of, relating to, or caused by a pattern of familial inheritance resulting from multiple genetic or environmental factors or from a combination of both.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
adjective Referring to the influence of multiple factors in the aetiology of a particular disease (e.g., diabetes, hypertension), attributable to genetic and environmental components.
adjective Referring to a phenotype caused by more than two genes.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
multifactorialadjective Referring to the influence of multiple factors in the etiology of a particular disease–eg, DM, HTN–attributable to genetic and environmental components
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
multifactorial(of a character) controlled by several genes.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005