Coat of arms. This article is about coat of arms which is only an element of an achievement (heraldic symbol); the expression 'coat of arms' is often erroneously used to refer to the whole achievement . For the whole heraldic symbol, see achievement (heraldry).
The effects of this herbal stimulant are similar to caffeine. Ginkgo, also known as ginkgo biloba, is a well-known type of natural stimulant. The stimulant properties of this plant are said to improve circulation and brain function. Many physicians recommend ginkgo supplements to prevent memory and concentration problems associated with age.
LINK / CITE ADD TO WORD LIST. noun. The definition of a stimulant is something that raises activity and interest levels, or raises the level of physiological or nervous activity in the body. 1  Tax breaks that encourage business development are an example of a stimulant. 2  A cup of coffee is an example of a stimulant.