(chemistry) Any reaction in which a compound is dissociated into its elements, or in which a molecule is dissociated into atoms

(organic chemistry) The trans oxidation of an alkene, to form a dihydric alcohol, catalyzed by iodine and silver benzoate.

The state of diverse reception, when there are many who praise something while there are also many who dislike it. / (ironical) An unmixed reaction, usually opposition.

(chemistry) any reaction, typically involving organic compounds, in which a cyclic transition state is involved

the state resulting from such a reaction / a process involving change in atomic nuclei

(chemistry) A process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.

(chemistry) Either the oxidation or the reduction component of a redox reaction

A process such as the fission of an atomic nucleus, or the fusion of one or more atomic nuclei and/or subatomic particles in which the number of protons and/or neutrons in a nucleus changes; the reaction products may contain a different element or a different isotope of the same element.

(chemistry) The reaction of a Grignard reagent (an organo-magnesium halide) with aldehydes or ketones to form secondary or tertiary alcohols

(idiomatic) An instantaneous reaction made without thought.