|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|1.||to adjust (the amount of heat, sound, etc, of something) as required; control|
|2.||to adjust (an instrument or appliance) so that it operates correctly|
|3.||to bring into conformity with a rule, principle, or usage|
|[C17: from Late Latin rēgulāre to control, from Latin rēgula a ruler]|
regulate reg·u·late (rěg'yə-lāt')
v. reg·u·lat·ed, reg·u·lat·ing, reg·u·lates
To control or direct according to rule, principle, or law.
To adjust to a particular specification or requirement.
To adjust a mechanism for accurate and proper functioning.
To put or maintain in order.