The mammary gland is a modified sweat gland that nourishes the young. It consists of the mamma and the teat. Undeveloped in both the male and female at birth, the female mammary gland begins to develop as a secondary sex characteristic at puberty.
gang definition, meaning, what is gang: a group of young people, especially young men, who spend time together, often fightingâ¦. Learn more.
The definition of a triad is a group of three people or things. An example of a triad is two brothers and a sister. YourDictionary definition and usage example.