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substrate: Meaning and Definition of

sub•strate

Pronunciation: (sub'strāt), [key]
— n.
  1. a substratum.
  2. the substance acted upon by an enzyme.
  3. a supporting material on which a circuit is formed or fabricated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
substitutive substratosphere
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