Natural Way to Get Rid of Sagging Above the Eye By Carole A. Ward Droopy eyelids begin when the fragile layers of skin that surround the eyes thin and lose their elasticity due to age, stress, smoking, dehydration, depression, a diet rich in sugars and other environmental factors.
Examples of principles are descriptive comprehensive and fundamental law, doctrine, or assumption, the normative rule or code of conduct, and the law or fact of nature underlying the working of an artificial device.
Princeton's WordNet(4.00 / 1 vote)Rate this definition: 1  principle, rule(noun) a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct. 2  principle(noun) a rule or standard especially of good behavior. 3  principle(noun) a basic truth or law or assumption.