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xenobiotic

American  
[zen-uh-bahy-ot-ik, -bee-, zee-nuh-] / ˌzɛn ə baɪˈɒt ɪk, -bi-, ˌzi nə- /

noun

  1. a chemical or substance that is foreign to an organism or biological system.

Etymology

Origin of xenobiotic

First recorded in 1915–20; xeno- + biotic

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.