oestregen

WordNet-Online
Free dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
Hint: double-click any word to get it searched!

Definitions from the Web

Oestrogen

Oestrogen, also known as estrogen, is a hormone that plays a crucial role in the development and regulation of the female reproductive system and secondary sexual characteristics. It is produced primarily in the ovaries, as well as in smaller amounts in the adrenal glands and fat cells. Oestrogen belongs to a group of hormones called steroid hormones and is essential for menstrual cycle regulation, bone health, and the maintenance of vaginal and uterine health.

Sense 1: Hormone

In its primary sense, oestrogen refers to a group of female sex hormones that control the growth and development of female sexual characteristics and reproductive tissues. It includes three main types: estrone, estradiol, and estriol.

Sample sentence:

"During puberty, the levels of oestrogen in a girl's body increase rapidly, leading to the development of breasts and the onset of menstruation."

Sense 2: Medication

Oestrogen is also used as a medication in hormone replacement therapy (HRT) to alleviate menopausal symptoms and prevent osteoporosis in postmenopausal women. It can be administered through various forms, including pills, patches, creams, and injections.

Sample sentence:

"After discussing the benefits and risks with her doctor, Michelle decided to start oestrogen therapy to manage her menopausal symptoms."

Sense 3: Environmental Impact

Oestrogen can also refer to synthetic hormones or chemicals that mimic the effects of natural oestrogen. These substances can enter the environment through agricultural runoffs or industrial waste and have been associated with ecological imbalances.

Sample sentence:

"The presence of oestrogen-like compounds in the rivers has been linked to the disruption of fish reproduction."