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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

interaction, fundamental interaction
(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields

noun.phenomenon

4 Subcategories

electromagnetic interaction go
an interaction between charged elementary particles that is intermediate in strength between the strong and weak interactions
gravitational interaction go
a weak interaction between particles that results from their mass
strong interaction, strong force, color force go
(physics) the interaction that binds protons and neutrons together in the nuclei of atoms
weak interaction, weak force go
(physics) an interaction between elementary particles involving neutrinos or antineutrinos that is responsible for certain kinds of radioactive decay