Definition of polysilicon in English:

polysilicon

adjective

Chemistry
  • Designating compounds containing several or many silicon atoms, often in chains or networks.

noun

Electronics
  • A polycrystalline form of silicon used especially in some solid-state MOS devices.

Origin

1950s. From poly- + silicon. As noun after polycrystalline.

Pronunciation

polysilicon

/ˌpɒlɪˈsɪlɪk(ə)n/