âº the time at which a situation starts to change in an important way: The organization called the new regulations a turning point in the campaign against smoking. The turning point in her political career came when she was chosen to run for a Senate seat.
Noun. 1. constitution-law determining the fundamental political principles of a government. fundamental law, organic law. law-legal document setting forth rules governing a particular kind of activity; there is a law against kidnapping.
A constitutional monarchy may refer to a system in which the monarch acts as a non-party political head of state under the constitution, whether written or unwritten.