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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

Adding the stimulant Evekeo only made him more hyperactive; Concerta and ProCentra also didn’t help.

From The Wall Street Journal • Nov. 20, 2025

Scientists are still learning about its complex effects, which can range from stimulant to sedative and stem from chemical compounds called alkaloids.

From Los Angeles Times • Aug. 15, 2024

Tea it might as well be called; brewed from roasted permgrain, orsh is a brown, sweetsour drink, strong in vitamins A and C, sugar, and a pleasant stimulant related to lobeline.

From "The Left Hand of Darkness" by Ursula K. Le Guin