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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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instrumentation, instrumentality go
an artifact (or system of artifacts) that is instrumental in accomplishing some end
an artifact (or system of artifacts) that is instrumental in accomplishing some end
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tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve go
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
magnetron
a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields
a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields
noun.artifact
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