Photochemical

adj, noun

adj, noun ·5 syllables ·Rare ·Advanced level

Definitions

Noun

1
Any chemical compound (such as silver halides) used in photography.
"[…] Kodak's production of photochemicals, and Sheppard worked out a method of suspending pulverized coal in fuel oil for use in U.S. Navy ships. By the spring of 1918 Sheppard had developed a collodial mixture containing chemical […]"

Adjective

1
Of, relating to, or produced by photochemistry or by photochemical reactions. not-comparable
"The O–O bond in benzoyl peroxide and the C–N bonds in AIBN homolyze under thermal or photochemical conditions."

Adjective

1
of or relating to or produced by the effects of light on chemical systems wordnet

Synonyms

acid basic biochemical chemical elemental elementary

Example

"The air was infected with photochemical smog."

Etymology

From photo- + chemical.

Related phrases

photochemical logic gate photochemical oxidant photochemical reaction photochemical reduction photochemical smog photochemical reaction

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.