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
About what age do you hit puberty? Girls hit puberty at around the age of 11-14 but can start anywhere from 8 and 16 boys hit puberty at around the age of 12 and 14 but can start from around 11 to 15. General â¦ ly from 11 years for girls and 13 years for boys but it varies a lot and can be earlier or later.18 people found this useful.he average age for boys to start is 12 or 13 years of age and on â¦ ce you do start puberty it lasts for about 6 years. 8 people found this useful. Invigilator - 007. 94,586 Contributions. Years of experience helping teens through Puberty with all Q&A.