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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

pressure, pressure level, force per unit area go
the force applied to a unit area of surface

radiation pressure, corpuscular-radiation pressure go
the minute pressure exerted on a surface normal to the direction of propagation of a wave

acoustic radiation pressure
(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

noun.attribute

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