Pronunciation: (sin'thu-sī"zur), [key]
1. a person or thing that synthesizes.
2. Music.any of various electronic, sometimes portable consoles or modules, usually computerized, for creating, modifying, and combining tones or reproducing the sounds of musical instruments by controlling voltage patterns, operated by means of keyboards, joysticks, sliders, or knobs.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.