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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

process, physical process go
a sustained phenomenon or one marked by gradual changes through a series of states

phenomenon go
any state or process known through the senses rather than by intuition or reasoning

natural phenomenon go
all phenomena that are not artificial

physical phenomenon go
a natural phenomenon involving the physical properties of matter and energy

energy, free energy go
(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work

radiation go
energy that is radiated or transmitted in the form of rays or waves or particles

electromagnetic radiation, electromagnetic wave, nonparticulate radiation go
radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

microwave
a short electromagnetic wave (longer than infrared but shorter than radio waves)

noun.phenomenon

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