quantum
quantum / quantum / Relating to the physics of very small particles and their behavior, which differs from classical physics.
NounAdjective
pl: quanta
This term describes a discrete, indivisible unit of energy or matter. In physics, it refers to the smallest possible packet of a physical entity, shifting the conceptualization of nature from a continuous flow to a series of distinct steps. When used in a non-scientific context, it denotes a specific, fixed amount or a sudden, dramatic shift. The phrase quantum leap is frequently used to describe a massive breakthrough, though in physics, a quantum leap is actually the smallest possible change in energy level.
Meanings
Nounquantum
A discrete quantity of energy proportional in magnitude to the frequency of the radiation it emits or absorbs.
"The photon is the quantum of light."