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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

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

artifact, artefact go
a man-made object taken as a whole

instrumentation, instrumentality go
an artifact (or system of artifacts) that is instrumental in accomplishing some end

device go
an instrumentality invented for a particular purpose

source of illumination go
any device serving as a source of visible electromagnetic radiation

ultraviolet lamp, ultraviolet source go
any source of illumination that emits ultraviolet radiation

mercury-vapor lamp go
ultraviolet lamp that emits a strong bluish light (rich in ultraviolet radiation) as electric current passes through mercury vapor

sunlamp, sun lamp, sunray lamp, sun-ray lamp
a mercury-vapor lamp used in medical or cosmetic treatments

noun.artifact

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