Definitions for "hyperactive"
an individual which will constantly be doing something; such dogs may become neurotic if unable to engage in a positive outlet for their energy.
Exhibiting hyperactivity.
Exhibiting an abnormally high level of function of an organ, gland, or system. Hyperactive sebaceous glands may lead to an excessively oily skin.
describes a situation in which a body tissue is especially likely to have an exaggerated reaction to a particular situation.