1. (Physiology) the faculty or sense by which sound is perceived. 2. an opportunity to be listened to. 3. (General Physics) the range within which sound can be heard; earshot. 4. (Law) the investigation of a matter by a court of law, esp the preliminary inquiry into an indictable crime by magistrates. 5.
The grey hair ârule of thumbâ is that by the age of 50, half of the population have lost the colour in 50% of their hair. When researchers tested this rule, they found that 74% of people aged between 45 and 65 had grey hair, with an average intensity of 27%. Generally, men have more grey hair than women.
How much gray you have will alter your hair color values and the actual color. For example, if you have naturally warm brown or auburn hair, you could be considered platinum if 80% of your hair is gray, warm gray if 50% of your hair is gray, and auburn with white âhighlightsâ if 10% of your hair is gray.ince gray hair is a cool temperature, the more you have (length of hair and amount of gray), the more dominantly cool you will be. Cool core wardrobes consist of blacks, grays, whites and blues with the values working with your own personal color values.