growth factor

noun

: a substance (such as a vitamin B12 or an interleukin) that promotes growth and especially cellular growth

Examples of growth factor in a Sentence

Recent Examples on the Web
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Neuroscientists Wendy Suzuki, PhD, Samuel Wang, PhD, and Gary Small, MD explain how movement increases blood flow, boosts growth factors like BDNF, and floods the brain with mood-lifting neurochemicals. Big Think, 30 Apr. 2026 Doctors in Abu Dhabi would compose an individualized concoction of enhancement drugs for him and many of his fellow athletes, selecting from testosterone, anabolic steroids, growth factors like HGH and EPO, hormone and metabolic modulators, and stimulants like Adderall. Clara Molot, Vanity Fair, 30 Apr. 2026 Exosomes are right up there with peptides and growth factors as the buzziest ingredient in wellness. Adam Hurly, Robb Report, 29 Apr. 2026 Exercise also increases levels of BDNF, a growth factor that helps maintain the hippocampus, the part of the brain responsible for forming new and long-term memories, and one that often shrinks in dementia, said Ashwini Nadkarni, assistant professor of psychiatry at Harvard Medical School. The Washington Post, San Diego Union-Tribune, 21 Apr. 2026 See All Example Sentences for growth factor

Word History

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of growth factor was in 1926

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Cite this Entry

“Growth factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/growth%20factor. Accessed 2 May. 2026.

Medical Definition

growth factor

noun
: a substance (as a vitamin B12 or an interleukin) that promotes growth and especially cellular growth

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