Word Origin and History for corrugated Expand. adj. 1620s, wrinkled (of skin, etc.), past participle adjective from corrugate. Meaning bent into curves or folds (of iron, cardboard, etc., for elasticity and strength) is from 1853.
on average girls start puberty between the ages of 9 and 14 but some will start to develop breasts or pubic hair by age 8 and a small number will start to mature before age 7the technical term for this is precocious pubertygirls are five times more likely than boys to develop precocious pubertyn average girls start puberty between the ages of 9 and 14 but some will start to develop breasts or pubic hair by age 8 and a small number will start to mature before age 7
The average age for girls to begin puberty is 11, while for boys the average age is 12. But thereâs no set timetable, so donât worry if your child reaches puberty before or after their friends. Itâs completely normal for puberty to begin at any point from the ages of 8 to 14. The process takes about four years overall. Late or early puberty