/ Dictionary / Index R re-uptake: Meaning and Definition of Find definitions for: re-up•take Pronunciation: (rē-up'tāk), [key] — n. Physiol. the process by which the presynaptic terminal of a neuron reabsorbs and recycles the molecules of neurotransmitter it has previously secreted in conveying an impulse to another neuron. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: re-uptake (Thesaurus) re-up reused Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language