'Firefly luciferin' definitions:

Definition of 'Firefly luciferin'

From: GCIDE

Firefly luciferin \Fire"fly` lu*cif"er*in\, n. (Biochem.) a type of luciferin produced by the firefly {Photinus pyralis}.
Note: Its structure has been elucidated, and chemically it is recognized as
4,5-Dihydro-2-(6-hydroxy-2-benzothiazol-2-yl)-4-thiazolecarboxylic acid, C11H8N3O2S2. It has found use in a very sensitive assay for ATP, in which concentrations of ATP as low as 10^-11 molar can be detected. --[MI11] [PJC]