- a law, rule, or other order prescribed by authority, especially to regulate conduct: Safety regulations require the use of impact-resistant helmets.
- the act of regulating or the state of being regulated: Adolescence is a potentially important time in the development of emotion regulation.
- the normal, prescribed duration of a game according to the sport's regulations, exclusive of any extra innings, overtime period, etc.: The Knicks tied the score in the final seconds of regulation, sending the game into overtime.
- the internal response that an organism undergoes to adapt to external stimuli (distinguished from control def. 16): Regulation of blood flow is an essential mechanism for delivering oxygen and glucose to the tissues that need it most.
- the act or process of controlling the expression of genes:Scientists are hoping to discover whether viruses can be used to study gene regulation in mammalian cells.
- the process by which an embryo can continue to develop normally after it has been damaged:Added cells become normally integrated into the body of the host embryo, which provides additional evidence of embryonic regulation.
- the difference between maximum and minimum voltage drops between the anode and the cathode of a gas tube for a specified range of values of the anode current.
- the percentage difference in some quantity related to the operation of an apparatus or machine, as the voltage output of a transformer or the speed of a motor, between the value of the quantity at no-load operation and its value at full-load operation.
- prescribed by or conforming to regulation: regulation army equipment.
- usual; normal; customary: the regulation decorations for a Halloween party.
- during the normal, prescribed duration of a game:Both teams are entitled to two timeouts in each half of regulation play.
- the act or process of regulating
- a rule, principle, or condition that governs procedure or behaviour
- a governmental or ministerial order having the force of law
- the ability of an animal embryo to develop normally after its structure has been altered or damaged in some way
- as required by official rules or procedure
- normal; usual; conforming to accepted standards
- the change in voltage occurring when a load is connected across a power supply, caused by internal resistance (for direct current) or internal impedance (alternating current)
