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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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process, physical process go
a sustained phenomenon or one marked by gradual changes through a series of states
a sustained phenomenon or one marked by gradual changes through a series of states
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action, activity, natural process, natural action go
a process existing in or produced by nature (rather than by the intent of human beings)
a process existing in or produced by nature (rather than by the intent of human beings)
pair production, pair creation, pair formation
the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
noun.process
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