xenotropic

adjective

xe·​no·​tro·​pic ˌze-nō-ˈträ-pik How to pronounce xenotropic (audio) -trō- How to pronounce xenotropic (audio)
ˌzē-
: replicating or reproducing only in cells other than those of the host species
xenotropic viruses

Word History

Etymology

xeno- + -tropic

Note: The term was introduced by the American physician and virologist Jay A. Levy (b1938) in "Xenotropic Viruses: Murine Leukemia Viruses Associated with NIH Swiss, NZB, and Other Mouse Strains," Science, vol. 182, issue 4117 (December 14, 1973), pp. 1151-53.

First Known Use

1973, in the meaning defined above

Time Traveler
The first known use of xenotropic was in 1973

Browse Nearby Words

Cite this Entry

“Xenotropic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/xenotropic. Accessed 13 Jan. 2026.

Medical Definition

xenotropic

adjective
xe·​no·​tro·​pic -ˈträp-ik How to pronounce xenotropic (audio) -ˈtrō-pik How to pronounce xenotropic (audio)
: replicating or reproducing only in cells other than those of the host species
xenotropic viruses
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