The Collaborative International Dictionary
Indole \In"dole\, Indol \In"dol\([i^]n"d[=o]l), n. [Indigo + -ol of phenol.] (Chem., Physiol. Chem.) A white, crystalline substance, C8H7N, obtained from blue indigo, and almost all indigo derivatives, by a process of reduction; chemically, it is 2,3-benzopyrrole, a bicyclic heterocyclic compound, having a benzene ring fused to a pyrrole ring. It is also formed from proteinaceous matter, together with skatol, by putrefaction, and by fusion with caustic potash, and is present in human excrement, as well as in the intestinal canal of some herbivora. It is produced in rich growth media by the intestinal bacterium Escherichia coli.
Wiktionary
n. (alternative form of indole English)
Usage examples of "indol".
It used to be thought that large doses of indol might be consumed with little or no effect on normal man, but now we know that headache, insomnia, confusion, irritability, decreased activity of the cells, and intoxication are possible from it.
In my tests here to-day, I injected four one-hundredths of a grain of indol into a guinea-pig.
You know the indols, the phenols, and the amins are produced both by putrefactive bacteria and by the process of metabolism, the burning up of the tissues in the process of utilizing the energy that means life.