American Dictionary

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Definition stimulant in American English

stimulant noun

[countable] noun
/ˈstɪmjələnt/
1

a substance that makes a part of your body work faster or better

Example

a heart/brain/respiratory stimulant

Synonyms and related words
1.1

a substance that makes you feel more awake when you eat it or drink it

Example

Try to avoid stimulants like coffee late in the evening.

Synonyms and related words
2

something that encourages something to happen, develop, or improve

Example

Population growth is a major stimulant to industrial development.

Synonyms and related words
Definition stimulant in American English