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.
Eventually your kids will grow into their own special set of teeth that have a unique shape, color and size. If your child has extremely stained or yellow teeth, you should consult your dentist about his or her options. We recommend 18 years of age is the earliest kids should have professional teeth whitening. There are several reasons for this but the main reason has to do with the fact that the pulpal of the teeth are enlarged and can be damaged prior to this age.