Part of speech:
A substance used in the diagnosis, treatment, or prevention of a disease or as a component of a medication.
A bitter white alkaloid found in tea leaves, coffee beans, and various other plant parts. It is a mild stimulant. Caffeine is a xanthine and similar in structure to theobromine and theophylline. Chemical formula: C8H10N4O2.
A substance that starts or speeds up a chemical reaction while undergoing no permanent change itself. The enzymes in saliva, for example, are catalysts in digestion.
The snap made by a finger which is held down toward the palm by the thumb and then suddenly released
Any driving impulse; spur
Motivation is defined as the reasons why you are doing something, or the level of desire you have to do something.
Provocation is defined as something that gets someone to act, especially out of irritation.
(Shipbuilding) A curved piece of timber serving as a half to support the deck where a whole beam cannot be placed.
Something that has an impact or an effect on an organism so that its behavior is modified in a detectable way.
(Informal) The upper teeth or a set of upper dentures.
Something that deters:
A sedative medicine
The definition of a depressant is a substance that reduces functional or nervous activity, or something that hinders economics or other activity.
Something that encourages
The definition of impetus is the force that makes something happen or that makes a body move.
(Physiol.) The progressive wave of excitation over a muscle or nerve fiber, which causes or inhibits activity in the body
A provocation to action; a stimulus:
A basis for an action or response; a reason:
a drug that temporarily quickens some vital process
Something put into a system or expended in its operation to achieve output or a result, especially:
Find another word for stimulant. In this page you can discover 31 synonyms, antonyms, idiomatic expressions, and related words for stimulant, like: tonic, bracer, energizer, drug, caffein, caffeine, catalyst, excitant, fillip, goad and incentive.