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photodegradable

American  
[foh-toh-di-grey-duh-buhl] / ˌfoʊ toʊ dɪˈgreɪ də bəl /

adjective

  1. (of a substance) capable of being broken down by light.

photodegradable British  
/ ˌfəʊtəʊdɪˈɡreɪdəbəl /

adjective

  1. (of plastic) capable of being decomposed by prolonged exposure to light

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
photodegradable Scientific  
/ fō′tō-dĭ-grā′də-bəl /

  1. Capable of decomposing when exposed to light. Photodegradable plastic, for example, becomes brittle and breaks into smaller pieces when exposed to sunlight, helping reduce litter and environmental damage.

Etymology

Origin of photodegradable

First recorded in 1970–75; photo- + degradable

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.