stimulus

Stimulus

An external phenomenon that has an influence on a system, by triggering or modifying an internal phenomenon; for example, a spur or incentive that drives a person to take action or change behaviour

• Light is the stimulus that causes a flower to open.

  Licht ist der Anreiz, der Blüten dazu bringt, sich zu öffnen.

  Tatoeba · rul · CC BY 2.0 FR

Stimulus

Something external that elicits or influences a physiological or psychological activity or response, or that affects any of the sensory apparatuses

Stimulus

A stinging part on the body of a plant or insectselten