ex·​og·​e·​nous | \ ek-ˈsä-jə-nəs How to pronounce exogenous (audio) \

Definition of exogenous

1 : produced by growth from superficial tissue exogenous roots produced by leaves
2a : caused by factors (such as food or a traumatic factor) or an agent (such as a disease-producing organism) from outside the organism or system exogenous obesity exogenous psychic depression exogenous market fluctuations
b : introduced from or produced outside the organism or system specifically : not synthesized within the organism or system

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Other Words from exogenous

exogenously adverb

Examples of exogenous in a Sentence

Recent Examples on the Web Whether the source of the shock is endogenous or exogenous is to a certain extent missing the point — a hit that massive would be catastrophic. Kevin A. Hassett, National Review, "5 Questions for Tyler Goodspeed," 21 Dec. 2020 Forget that this is to be expected, since this year’s recession was caused by an exogenous shock but 2008’s by systemic issues. Isaac Schorr, National Review, "The New York Times Sells Envy," 25 Nov. 2020 The study's authors state that endogenous, or internal, EMF frequencies act on a molecular level, yet can be entrained through harmonic resonance to follow exogenous (external) frequencies. Chelsey Cox, USA TODAY, "Fact check: A magnetic shield will not protect cellphone users from EMF radiation," 13 July 2020 Both Covid-19 and climate change are, as my colleagues Jess Shankleman and Ewa Krukowska point out, what economists call exogenous shocks—factors that re-shape a system. Josh Petri, Bloomberg.com, "Climate and Pandemic Models Speak Louder Than Words," 12 May 2020 In some respects, exogenous shocks sow even more fear and uncertainty than traditional financial crises, because investors have no experience to draw on. David Enrich, New York Times, "Spiraling Virus Fears Are Causing Financial Carnage," 10 Mar. 2020 But Comen says evidence on breast cancer in trans women is still evolving and recommends any patient taking exogenous estrogen talk with their doctor about their unique concerns. Ashley Abramson, Allure, "Everything You Should Know About Breast Cancer Signs, Treatment, and More," 10 Mar. 2020 But it’s also extended scientists an opportunity to research the transition as a virus goes from exogenous (external) to endogenous (built into the genome), a process that hasn’t played out in humans in hundreds of thousands of years. Andrew Joseph, Scientific American, "What a Koala Virus Tells Us about the Human Genome," 14 Oct. 2019 And a 2012 case report involved a woman who developed a condition called exogenous lipoid pneumonia after vaping for about six months. NBC News, "What is in a vape? Everything you need to know," 3 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'exogenous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of exogenous

1830, in the meaning defined at sense 1

History and Etymology for exogenous

French exogène exogenous, from exo- + -gène (from Greek -genēs born) — more at -gen

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Time Traveler for exogenous

Time Traveler

The first known use of exogenous was in 1830

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Statistics for exogenous

Cite this Entry

“Exogenous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exogenous. Accessed 13 Apr. 2021.

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More Definitions for exogenous


ex·​og·​e·​nous | \ ek-ˈsäj-ə-nəs How to pronounce exogenous (audio) \
variants: also exogenic \ ˌek-​sō-​ˈjen-​ik How to pronounce exogenous (audio) \

Medical Definition of exogenous

1 : growing from or on the outside exogenous spores
2 : caused by factors (as food or a traumatic event) or an agent (as a disease-producing organism) from outside the organism or system exogenous obesity exogenous depression
3 : introduced from or produced outside the organism or system specifically : not synthesized within the organism or system — compare endogenous

Other Words from exogenous

exogenously adverb

More from Merriam-Webster on exogenous

Britannica English: Translation of exogenous for Arabic Speakers

Comments on exogenous

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