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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

electronic device go
a device that accomplishes its purpose electronically

generator go
an electronic device for producing a signal voltage

oscillator
generator that produces sonic oscillations or alternating current

noun.artifact

2 Subcategories

crystal oscillator, quartz oscillator go
an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal
local oscillator, heterodyne oscillator go
an oscillator whose output heterodynes with the incoming radio signal to produce sum and difference tones