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Definitions

stimulant

[stim-yuh-luhnt] / ˈstɪm yə lənt /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“It is a terrific stimulant of a sense of urgency.”

From Barron's • Feb. 25, 2026

Current treatments for attention disorders typically increase excitatory signaling in prefrontal brain circuits using stimulant medications.

From Science Daily • Jan. 2, 2026

“When a young person shows up with anxiety after starting a stimulant, that doesn’t mean that they have an anxiety disorder,” he said.

From The Wall Street Journal • Nov. 20, 2025

Caffeine is a stimulant that can make you feel more alert and less sleepy due to its effect on the brain and nervous system.

From BBC • Jul. 31, 2025

He reached for the week-old paper and read again the letter that was the great tonic and stimulant of the day: Hd Qrs.

From "Across Five Aprils" by Irene Hunt




Vocabulary lists containing stimulant


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