stimulus
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
Something that causes a reaction or response in a living thing, or something that encourages activity or growth.
Synonyms and antonyms
Synonyms
trigger
prompt
Usage notes
The plural of "stimulus" is "stimuli".
Test yourself
Which word fits the gap? "Light acts as a _____ that makes the plant grow toward the window."
Answer: stimulus
In your own words, what does "stimulus" mean?
Something that causes a reaction or response in a living thing, or something that encourages activity or growth.
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