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growth factor

American

noun

any of various proteins that promote the growth, organization, and maintenance of cells and tissues.

growth factor British

noun

any of several substances present in serum that induce growth of cells. Excessive amounts of growth factor may be associated with the production of cancer cells

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Over at GlaxoSmithKline, a partnership with Korea’s ABL Bio will use the receptor for the insulinlike growth factor as a portal for neurology drugs.

From Barron's • Jun. 3, 2026

The researchers concluded that NRP1 is a co-receptor for nerve growth factor, as -- unlike TrkA -- NRP1 is not known to signal on its own.

From Science Daily • Dec. 5, 2024

To determine this, they observed that nerve growth factor has a stretch of amino acids that is known to allow other proteins to bind to NPR1.

From Science Daily • Dec. 5, 2024

First, when binding to nerve growth factor, NRP1 increases the local concentration of nerve growth factor that is presented to TrkA, the signaling receptor.

From Science Daily • Dec. 5, 2024

In the past, colonies have invariably failed when they consisted only of members fleeing from something, without possessing an adequate growth factor.

From The Colonists by Jones, Raymond F.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023