n, pl  quan*ta   1  :  one of the very small increments or parcels into which many forms of energy are subdivided <a molecule of rhodopsin in the human eye can cause a response to a single of light>   2  :  one of the small molecular packets of a neurotransmitter (as acetylcholine) released into the synaptic cleft in the transmission of a nerve impulse across a synapse .
 
 
 
Similar sounding terms:  con·dom  co·nid·i·um  go·ni·ot·o·my  qui·ne·tum 
 
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