Definitions

1. noun

the first menstrual period in a girl or young woman, marking the beginning of her reproductive cycle

“Her menarche occurred when she was 13 years old.”

2. noun

the onset of menstruation

“The doctor explained the significance of her menarche and how to manage it.”

3. noun

a girl’s first menstrual period, often considered a rite of passage

“The community celebrated the girl’s menarche with a traditional ceremony.”