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aluminum arsenide

noun

Definition of aluminum arsenide 

: a semiconductor AlAs used in the manufacture of electronic devices and lasers One device consists of layers of gallium arsenide and aluminum arsenide that emit and partially trap sound vibrations in the solid (phonons) oscillating in the terahertz range.— J. R. Minkel, Scientific American, August 2006

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First Known Use of aluminum arsenide

1919, in the meaning defined above

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The first known use of aluminum arsenide was in 1919

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