gallium arsenide

noun Chemistry.

a crystalline and highly toxic semiconductor, GaAs, used in light-emitting diodes, lasers, and electronic devices.

Nearby words

  1. galliot,
  2. gallipoli,
  3. gallipoli peninsula,
  4. gallipot,
  5. gallium,
  6. gallium-67,
  7. gallium-68,
  8. gallivant,
  9. galliwasp,
  10. gallnut

Origin of gallium arsenide

First recorded in 1960–65 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for gallium arsenide

gallium arsenide

A dark-gray crystalline compound used in transistors, solar cells, and semiconductor lasers. Chemical formula: GaAs.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.