substrate

[ suhb-streyt ]
/ ˈsʌb streɪt /

noun

a substratum.
Biochemistry. the substance acted upon by an enzyme.
Electronics. a supporting material on which a circuit is formed or fabricated.

Origin of substrate

First recorded in 1570–80; variant of substratum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for substrate

British Dictionary definitions for substrate

substrate

/ (ˈsʌbstreɪt) /

noun

biochem the substance upon which an enzyme acts
another word for substratum
electronics the semiconductor base on which other material is deposited, esp in the construction of integrated circuits
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for substrate

substrate

[ sŭbstrāt′ ]

n.

The material or substance on which an enzyme acts.
A surface on which an organism grows or is attached.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for substrate

substrate

[ sŭbstrāt′ ]

The material or substance on which an enzyme acts. See more at enzyme.
The surface on or in which plants, algae, or certain animals, such as barnacles or clams, live or grow. A substrate may serve as a source of food for an organism or simply provide support.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.