nicotinic: Definition and Much More from Answers.com

adj.

1. Of or relating to nicotine.
2. Of or relating to niacin.

(nĭk'ə-tĭn'ĭk, -tē'nĭk)
adj.

1. Of or relating to nicotine.
2. Of or relating to niacin.

Pertaining to the transmission of nerve impulses mediated by nicotinic receptors.

• n. acid — see niacin.
• n. receptors — cholinergic receptors of autonomic ganglion cells and motor end-plates of skeletal muscle that are stimulated by low doses of nicotine and blockaded by high doses or by tubocurarine.
• n. synapses — synapses in which nicotinic transmitters effect the transmission of impulses.