A compound of arsenic with a more electropositive element.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "arsenide" in a sentence
"Most red LEDs are made of aluminum gallium arsenide, which is toxic."
"Using concentrated sunlight focused onto a small 5 mm² multi-junction solar cell made out of GaInP/GaInAs/Ge (gallium indium phosphide, gallium indium arsenide on a germanium substrate (whew!))."
"You know, replete with all that stuff about electrons and holes and "p-doping" and "n-doping" and the delights of gallium arsenide."