English · Science & Technology
reaction
/riˈæk.ʃən/
[/riˈæk.ʃən/]
chemical change
Intermediatenoun
Definition
A process in which substances change to form different substances; also a response to something.
Example
The chemical reaction produced bubbles of gas and made the liquid turn a bright blue.
The chemical reaction produced bubbles of gas and made the liquid turn a bright blue.
Etymology
From Medieval Latin 'reactio', from Latin 're-' (back) plus 'agere' (to do, act).
How & Where It’s Used
Used in chemistry and for emotional or physical responses.