active
Definitions
adj
Having the power or quality of acting; causing change; communicating action or motion; acting;—opposed to passive, that receives.
certain active principles
the active powers of the mind
Quick in physical movement; of an agile and vigorous body; nimble.
an active child or animal
In action; actually proceeding; working; in force
active laws
active hostilities
In action; actually proceeding; working; in force
Given to action; constantly engaged in action; energetic; diligent; busy
an active man of business
active mind
noun
A person or thing that is acting or capable of acting.
"Alumni could become more active in giving guidance and leadership to students. They act as sort of a 'maturity governor' on fraternities," notes Ratliff, citing surveys suggesting that fraternity actives presume mistakenly that alumni want hazing […]
Any component that is not passive. See Passivity (engineering).
Components are split into two broad segments: actives and passives. Active components like the vacuum tube and the transistor contain the power to generate and alter electrical signals.