One who promotes entertainment events or goods.
The section of DNA that controls the initiation of RNA transcription as a product of a gene.
An accelerator of catalysis that is not itself a catalyst.
One who promotes.
An electronic voice-amplification apparatus, usually containing a set of two loudspeakers and a central control unit, used for singing, giving a speech, play-by-play commentary at events, or broadcasting in public areas like in airports or stations.