| Date: | 1600-1700 |
| Language: | Latin |
| Origin: | 'sharp stick for making animals move' |
1 [countable usually singular, uncountable] something that helps a process to develop more quickly or more strongly :
Tax cuts provided the stimulus which the slow economy needed.
Tax cuts provided the stimulus which the slow economy needed.2 [countable]HB something that makes someone or something move or react :
At this age, the infant begins to react more to visual stimuli.
At this age, the infant begins to react more to visual stimuli.