chemiluminescence(n = noun.phenomenon) - luminescence resulting from a chemical reaction as the oxidation of luciferin in fireflies;
is a kind of luminescence
Derived form adjective chemiluminescent₁

chemiluminescence, n. the emission of light during a chemical reaction.

Derivative:
chemiluminescent adj.

Etymology:
G Chemilumineszenz (as CHEMI-, LUMINESCENCE)