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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

electrical device go
a device that produces or is powered by electricity

battery, electric battery
a device that produces electricity

noun.artifact

5 Subcategories

A battery go
the battery used to heat the filaments of a vacuum tube
B battery go
battery for supplying a constant positive voltage to the plate of a vacuum tube
C battery go
battery used to maintain the grid potential in a vacuum tube
voltaic battery, galvanic battery go
battery consisting of a number of voltaic cells arranged in series or parallel
pile, voltaic pile, galvanic pile go
battery consisting of voltaic cells arranged in series