/mid"teen"/ , adj.
1. of, pertaining to, or characteristic of a person 15-17 years old: specializing in mid-teen clothes.
n.
2. a person 15-17 years old: an ad campaign aimed at mid-teens.
3. mid-teens , numbers, amounts, ages, etc., midway between 13 and 19: He started at a salary in the mid-teens.