This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The first menstrual period, usually occurring during puberty.

n. The onset of menstruation; the beginning of the menstrual period. A girl's first period.

n. the first occurrence of menstruation in a woman

"And he's right: though they can be affected by such factors as weight, physical activity, and environmental toxins, the average age of menarche is around twelve and a half, and the average age of spermarche is around fourteen."

menopause   

start   

perimenopause    paegan    housewarming    vioxx    never-changing    katola    druidic    mizuko    fire-worship    quadrennial