In physics, a unit of radiant energy. 2. The minimum amount of neurotransmitter released by a neuron at a given time (in neuroscience).

QUANTUM: "A quantum leap Is actually referred to as a quantum jump."
Cite this page: N., Pam M.S., "QUANTUM," in PsychologyDictionary.org, April 28, 2013, https://psychologydictionary.org/quantum/ (accessed June 19, 2021).