synthesizer

[ sin-thuh-sahy-zer ]
/ ˈsɪn θəˌsaɪ zər /

noun

a person or thing that synthesizes.
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.

Origin of synthesizer

1865–70; 1905–10, for def 2; synthesize + -er1

British Dictionary definitions for synthesizer

synthesizer
/ (ˈsɪnθɪˌsaɪzə) /

noun

an electrophonic instrument, usually operated by means of a keyboard and pedals, in which sounds are produced by voltage-controlled oscillators, filters, and amplifiers, with an envelope generator module that controls attack, decay, sustain, and release
a person or thing that synthesizes