[ foh-toh-dee-kom-puh-zish-uh n ]
/ ˌfoʊ toʊˌdi kɒm pəˈzɪʃ ən /

noun Chemistry.

the breaking down of molecules by radiant energy.


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Origin of photodecomposition

First recorded in 1885–90; photo- + decomposition Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020