derivative
nounUK /dɪˈrɪvətɪv/
US /dɪˈrɪvətɪv/
A derivative is a math tool that tells you how fast something is changing at one moment.
The derivative of the car's position tells us its speed at any instant.
OTHER MEANINGS
2. Something that comes from or is based on another thing.
The word 'happiness' is a derivative of 'happy'.
3. A financial product whose value depends on an underlying asset.
Options and futures are common types of derivatives.
4. A chemical substance made from another substance.
Cellulose is a derivative of glucose.