happening or arising or located within some limits or especially surface
exercise authoritative control or power over
lessen the intensity of; temper; hold in restraint; hold or keep within limits
power to direct or determine
(physiology) regulation or maintenance of a function or action or reflex etc
the activity of managing or exerting control over something
a standard against which other conditions can be compared in a scientific experiment
the state that exists when one person or group has power over another
