substrate
6 synonyms for substrate, grouped by meaning and by how common each one is.
Noun — The surface or material that something is built on, grown on, or attached to.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
underlayer
substratum
How to use substrate
The word patterns that sound natural to a native speaker.
enzyme substrate
growing substrate
silicon substrate
substrate concentration
Technical but widely used across biology, chemistry, electronics and gardening.
Etymology
From Latin substratum, the neuter past participle of substernere "to spread underneath", from sub- "under" and sternere "to spread".
Full origin of substrate →Frequently asked questions
What is the difference between a substrate and a substratum?
They come from the same Latin word and often mean the same thing. "Substrate" is the standard term in science and manufacturing; "substratum" is more common in geology, linguistics and general figurative use, as in an underlying layer of meaning.
What is a substrate in biology?
Two things, depending on context. In biochemistry it is the specific molecule an enzyme binds and changes. In ecology and microbiology it is the surface or nutrient material an organism lives on or feeds from, such as agar in a culture dish.
What is the difference between a substrate and a reactant?
Every substrate is a reactant, but the word substrate specifically names the reactant that an enzyme or catalyst acts on. Chemists say "reactant" generally and "substrate" when a catalyst is doing the work.
