noun🔗ShareA substance that acts to increase physiological or nervous activity in the body."Many students drink coffee, which contains caffeine, because they believe stimulants help them stay awake and focused while studying. "medicinephysiologysubstancebodybiochemistrybiologyChat with AIVocabulary GamePractice Reading
noun🔗ShareSomething that promotes activity, interest, or enthusiasm."The teacher used fun games as stimulants to keep the students interested in the lesson. "medicinephysiologymindbodyChat with AIVocabulary GamePractice Reading