<p><strong>Noun</strong></p><ul><li>a person or thing that transmits</li><li>Also called transmitting set</li><li>Radio: a device for sending electromagnetic waves; the part of a broadcasting apparatus that generates and modulates the radiofrequency current and conveys it to the antenna</li><li>the part of a telephonic or telegraphic apparatus that converts sound waves or mechanical movements into corresponding electric waves or impulses</li><li>Biochemistry: neurotransmitter</li></ul>