biomagnification

[ bahy-oh-mag-nuh-fi-key-shuhn ]
/ ˌbaɪ oʊˌmæg nə fɪˈkeɪ ʃən /

noun

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Origin of biomagnification

First recorded in 1970–75; bio- + magnification
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Scientific definitions for biomagnification

biomagnification
[ bī′ō-măg′nə-fĭ-kāshən ]

The increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain. As a result of biomagnification, organisms at the top of the food chain generally suffer greater harm from a persistent toxin or pollutant than those at lower levels. Compare bioaccumulation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.