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Definitions

chemical reaction

[kem-i-kuhl ree-ak-shuhn] / ˈkɛm ɪ kəl riˈæk ʃən /
NOUN
chain reaction
Synonyms
STRONGEST
vicious circle
WEAK
causal nexus cause and effect chain of circumstances concatenation of events domino effect powder train ripples in a pond

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Hydrogen sulfide smells like rotten eggs and can be produced by a chemical reaction and by some organic material, such as sewage.

From The Wall Street Journal • Apr. 22, 2026

The crystals are driven by a chemical reaction similar to the one used to power rockets.

From Science Daily • Mar. 19, 2026

Form’s iron-air batteries generate electricity through a chemical reaction involving oxygen, water and iron powder that mimics how old pieces of metal gather rust.

From Barron's • Feb. 24, 2026

The smoldering chemical reaction inside Chiquita Canyon Landfill is growing and could last for decades, according to a new state analysis.

From Los Angeles Times • Nov. 19, 2025

Discovering the power of triads was like discovering a chemical reaction or a miracle cure.

From "The Story of Music" by Howard Goodall