Dictionary.com

photodegradable

[ foh-toh-di-grey-duh-buhl ]
/ ˌfoʊ toʊ dɪˈgreɪ də bəl /
Save This Word!

adjective
(of a substance) capable of being broken down by light.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

Origin of photodegradable

First recorded in 1970–75; photo- + degradable
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for photodegradable

photodegradable
/ (ˌfəʊtəʊdɪˈɡreɪdəbəl) /

adjective
(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

Scientific definitions for photodegradable

photodegradable
[ fō′tō-dĭ-grādə-bəl ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK