noun🔗ShareAn alicyclic heterocycle, containing 5 carbon atoms and one nitrogen atom, formally derived by the hydrogenation of pyridine; many of its derivatives are alkaloids or pharmaceuticals"A chemistry student learned that piperidine is a building block for many important drugs and naturally occurring substances. "compoundchemistrymedicinesubstancebiochemistryChat with AIVocabulary GamePractice Reading