Dictionary

1quantum

noun quan·tum \ˈkwän-təm\

physics : the smallest amount of many forms of energy (such as light)

plural quan·ta \ˈkwän-tə\

Full Definition of QUANTUM

1
a :  quantity, amount
b :  portion, part
c :  gross quantity :  bulk
2
a :  any of the very small increments or parcels into which many forms of energy are subdivided
b :  any of the small subdivisions of a quantized physical magnitude (as magnetic moment)

Examples of QUANTUM

  1. <the sum of human knowledge is now so immense that even a highly educated person can hope to absorb only a tiny quantum of it>

Origin of QUANTUM

Latin, neuter of quantus how much
First Known Use: 1567

Related to QUANTUM

Other Physics Terms

amplitude, centrifugal, centripetal, convection, gradient, hysteresis, kinetic, lase

2quantum

adjective

physics : of, relating to, or using the principles of quantum theory

Full Definition of QUANTUM

1
:  large, significant <a quantum improvement>
2
:  of, relating to, or employing the principles of quantum mechanics <quantum physics>

First Known Use of QUANTUM

1942

Other Physics Terms

amplitude, centrifugal, centripetal, convection, gradient, hysteresis, kinetic, lase, quantum

quantum

noun quan·tum \ˈkwänt-əm\   (Medical Dictionary)
plural quan·ta \ˈkwänt-ə\

Medical Definition of QUANTUM

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 quantum 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

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April 21, 2015
omnipotent Hear it
having unlimited authority or influence
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