Substrate is part of the vocabulary of various other sciences, including chemistry and biology. But although it's mostly a scientific term, writers may also use it to mean simply "foundation"—for …

Substrate (printing), the base material that images will be printed onto Printed circuit board (PCB), or more specifically, the electrically insulating portion of a PCB structure, such as fiberglass …

A substrate is also a substance which an enzyme (= substance produced by living cells) acts on to produce a chemical reaction.

SUBSTRATE definition: a substratum. See examples of substrate used in a sentence.

1. The material or substance on which an enzyme acts. See Note at enzyme. 2. The surface on which plants, algae, or certain animals, such as barnacles, live or grow. A substrate may serve …

Definition of substrate noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Oct 12, 2025 · In biology, a substrate is an underlying substance or surface that provides a foundation for a biological process or an organism. It can be a molecule acted upon by …