Stimulus (noun) — مُحفز أو مُثير: Something that causes a reaction. Below are 7 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
A device that releases a mechanism; something that causes a reaction; to set off.
A spike worn on a rider's heel; something that encourages; to urge on.
Something that motivates action.
The force that makes something start or move faster.
cuepromptcatalyst
Something that increases speed or rate: a vehicle's pedal, a substance that speeds a chemical reaction, a machine that speeds particles, or a programme that…
A sudden urge to act; a push or driving force.
A sudden good idea; something that motivates.