reg·u·la·tion
ˌre-gyə-ˈlā-shən

ˌre-gə-,

also ˌrā-

1

**:**the act of regulating

**:**the state of being regulated

2

a

**:**an authoritative rule dealing with details or procedure

safety regulations

b

**:**a rule or order issued by an executive authority or regulatory agency of a government and having the force of law

3

a

**:**the process of redistributing material (as in an embryo) to restore a damaged or lost part independent of new tissue growth

b

**:**the mechanism by which an early embryo maintains normal development

4

a

or regulation time

**:**the standard period of time established by the rules of a game or contest excluding overtimeTrailing by five with less than a minute to go in regulation, Boston forced the game into overtime …—Bob Ryan

Dallas downed the ball at the 20 with 1:47 left in regulation.—Ralph N. Paulk

… there will be a change in France for the 1988 World Cup: a sudden-death … period after regulation time.—George Vecsey

b

golf

**:**the standard number of strokes allowed by par for reaching the green on a given hole (that is, one stroke on a par 3, two strokes on a par 4, and three strokes on a par 5)Using his conservative left-to-right fade, he hit all but three greens in regulation.—Jaime Diaz

**:**conforming to regulations

**:**official

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Merriam-Webster unabridged
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