a class of receptors responsive to acetylcholine that also are activated by nicotine; ganglionic (including the adrenal medulla) and neuromuscular receptors. Two classes exist: nicotinic-neuronal and nicotinic-muscular.
nic·o·tin·ic cho·lin·er·gic re·cep·tor
(nikŏ-tinik kōli-nĕrjik rĕ-septŏr) Receptors responsive to acetylcholine that also are activated by nicotine.