| NOUN | artifact | radio transmitter | transmitter that is the part of a radio system that transmits signals |
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| Meaning | transmitter that is the part of a radio system that transmits signals. | |
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| Part of | radio, wireless | A communication system based on broadcasting electromagnetic waves |
| Narrower | spark transmitter | An early radio transmitter using a discharge across a spark gap as the source of its power |
| Broader | transmitter, sender | Set used to broadcast radio or tv signals |