noun Chemistry.
- a colorless, water-soluble liquid, C5H11N, obtained from the alkaloid piperine or from pyridine: used chiefly as a solvent.
noun
- a colourless liquid heterocyclic compound with a peppery ammoniacal odour: used in making rubbers and curing epoxy resins. Formula: C 5 H 11 N
n.
- A strongly basic, colorless liquid from which certain phenothiazine antipsychotics are derived.