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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

atomic energy, nuclear energy
the energy released by a nuclear reaction

noun.phenomenon

1 Subcategories

atomic power, nuclear power go
nuclear energy regarded as a source of electricity for the power grid (for civilian use)