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(biochemistry) Abbreviation of N-Methyl-D-aspartic acid, an amino acid derivative. quotations examples
At a synaptic level, the axon terminal having to repeatedly release glutamate is the lecturer droning on repetitively; the moment when the postsynaptic threshold is passed and the NMDA receptors first activate is the dendritic spine finally getting it.
2017, Robert Sapolsky, chapter 5, in Behave, Penguin