para·​bi·​o·​sis | \ ˌper-ə-(ˌ)bī-ˈō-səs How to pronounce parabiosis (audio) , -bē-, ˌpa-rə- \

Definition of parabiosis

1 : reversible suspension of obvious vital activities
2 : anatomical and physiological union of two organisms

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Other Words from parabiosis

parabiotic \ ˌper-​ə-​(ˌ)bī-​ˈä-​tik How to pronounce parabiosis (audio) , -​bē-​ , ˌpa-​rə-​ \ adjective
parabiotically \ ˌper-​ə-​(ˌ)bī-​ˈä-​ti-​k(ə-​)lē How to pronounce parabiosis (audio) , -​bē-​ , ˌpa-​rə-​ \ adverb

Examples of parabiosis in a Sentence

Recent Examples on the Web In short, their bodies and brains looked a lot like the old mice after parabiosis—but without the drawbacks of a blood buddy. The Economist, "Uncovering how the body ages is leading to drugs to reverse it," 12 Sep. 2019 Entrepreneurs in Silicon Valley might have jumped the gun in selling the rejuvenating effects of parabiosis to their clients. The Economist, "Uncovering how the body ages is leading to drugs to reverse it," 12 Sep. 2019 The Science: Researchers conjoined the circulatory systems of young and old mice, a process called parabiosis. Gregory Barber, WIRED, "The Science Behind the Pursuit of Youth," 27 Mar. 2018 Three years ago, neuroscientist Tony Wyss-Coray’s lab at Stanford University in Palo Alto, California, found that injections of the plasma portion of blood from young mice could achieve the same antiaging effects as parabiosis in old mice. Jocelyn Kaiser, Science | AAAS, "Blood from young people does little to reverse Alzheimer’s in first test," 1 Nov. 2017 Amy Wagers, a professor of stem-cell and regenerative biology at the Harvard Stem Cell Institute, was the first to discover in 2013 that parabiosis, fusing two individuals anatomically, could improve muscle, heart, and lung function in mice. Meaghen Brown, Marie Claire, "Meet the Extensionists: People Who Believe Immortality Is Possible," 2 Oct. 2017 Rando’s work in parabiosis seemed to hinge on a similar process: making stem cells revert to a more youthful stage. Tad Friend, The New Yorker, "Silicon Valley’s Quest to Live Forever," 24 Mar. 2017 After that paper, Rando turned back to parabiosis, and Chang began work on a cream to make skin look decades younger. Tad Friend, The New Yorker, "Silicon Valley’s Quest to Live Forever," 24 Mar. 2017 I will be haunted by Guyenet’s description of parabiosis, a surgical technique. Judith Newman, New York Times, "And a Thinner New Year: Five New Books About Food and Diets," 28 Dec. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'parabiosis.' 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 parabiosis

1903, in the meaning defined at sense 1

History and Etymology for parabiosis

para- entry 1 + -biosis (in sense 2 after German Parabiose)

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Time Traveler for parabiosis

Time Traveler

The first known use of parabiosis was in 1903

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Statistics for parabiosis

Cite this Entry

“Parabiosis.” Dictionary, Merriam-Webster, Accessed 16 Jan. 2021.

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More Definitions for parabiosis


para·​bi·​o·​sis | \ ˌpar-ə-(ˌ)bī-ˈō-səs, -bē- How to pronounce parabiosis (audio) \
plural parabioses\ -​ˌsēz How to pronounce parabiosis (audio) \

Medical Definition of parabiosis

: the anatomical and physiological union of two organisms either natural (as in conjoined twins) or artificially produced

Other Words from parabiosis

parabiotic \ -​ˈät-​ik How to pronounce parabiosis (audio) \ adjective
parabiotically \ -​i-​k(ə-​)lē How to pronounce parabiosis (audio) \ adverb

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