simplesubstance
nounUK /ˈsɪmpəl ˈsʌbstəns/
US /ˈsɪmpəl ˈsʌbstəns/
A simple substance is a basic kind of material that is made of only one thing.
In science class, we learned that gold is a simple substance.
OTHER MEANINGS
2. A substance that cannot be broken down into simpler parts by chemical means.
The scientist studied the simple substance to understand its properties.
3. In philosophy, a fundamental entity that is not made of other things.
The philosopher argued that the soul is a simple substance.
4. A basic ingredient or component in a mixture.
Water is a simple substance made of hydrogen and oxygen.