Quantum
/ˈkwɑːntəm/noun
The minimum amount of any physical entity involved in an interaction.
In a quantum theory, both energy and matter exist in quantized forms.
Often appears as...
- quantum physics
- quantum leap
Usage tips
Formal
Technical
Definition 1 of 5
Pro Tip 1/3Small but Mighty
In physics, 'quantum' suggests something extremely small yet fundamentally crucial.
Atoms are composed of quanta.
Pro Tip 2/3Discrete Units
'Quantum' refers to fixed, distinct levels or amounts in scientific contexts, not continuous.
Electron transitions happen in quantum steps.
Pro Tip 3/3Technical Term
Used mainly in technical or scientific fields, not regular conversation.
Quantum computing will revolutionize technology.
Compare with
atomicelementenergyinfinitummeasureminuteparticleportionsubatomicunit
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