n. 1 adjustment, modification, modulation, control, balance, balancing, setting, fixing, organization, maintenance The regulation of the temperature is accomplished by the thermostat 2 rule, ruling, law, code, by-law or bye-law, edict, order, ordinance, statute, decree, directive, dictate There are strict regulations governing the sale, disposal, and movement of radioactive materials 3 edict, ukase, pronouncement, fiat, (papal) bull, proclamation A regulation was issued against meetings of more than five people
adj. 4 standard, accepted, official, required, prescribed, mandatory The soldier was not wearing a regulation uniform 5 usual, normal, ordinary, customary, typical If you use anything but regulation accessories, the guarantee will be null and void