inhibitory postsynaptic potential
Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to inhibitory postsynaptic potential: excitatory postsynaptic potential
inhibitory postsynaptic potential[in′hib·ə·tȯr·ē pōst·sə′nap·tik pə′ten·chəl]
A transient, graded hyperpolarization of the postsynaptic membrane, mediated by a chemical neurotransmitter, in response to action potentials arriving at the endings of the presynaptic neurons.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.