여성의 성적 발달과 생식 기능을 조절하며, 월경 주기 유지 등 여성의 신체적 특징을 관장하는 스테로이드 호르몬의 총칭.
Any of a group of steroid hormones that regulate sexual development and function, including the maintenance of the menstrual cycle in women and female vertebrates.
예문:
"Estrogen levels fluctuate significantly during a woman's menstrual cycle."
"Doctors may prescribe estrogen replacement therapy to alleviate symptoms of menopause."
"The decline in estrogen production can affect bone density in older women."