estrogen

2 ENTRIES FOUND:

es·tro·gen

noun \ˈes-trə-jən\

medical : a substance (called a hormone) that occurs naturally in women

Full Definition of ESTROGEN

:  any of various natural steroids (as estradiol) that are formed from androgen precursors, that are secreted chiefly by the ovaries, placenta, adipose tissue, and testes, and that stimulate the development of female secondary sex characteristics and promote the growth and maintenance of the female reproductive system; also :  any of various synthetic or semisynthetic steroids (as ethinyl estradiol) that mimic the physiological effect of natural estrogens

Origin of ESTROGEN

New Latin estrus + International Scientific Vocabulary -o- + -gen
First Known Use: 1927

es·tro·gen

noun \ˈes-trə-jən\   (Medical Dictionary)

Medical Definition of ESTROGEN

: any of various natural steroids (as estradiol) that are formed from androgen precursors, that are secreted chiefly by the ovaries, placenta, adipose tissue, and testes, and that stimulate the development of female secondary sex characteristics and promote the growth and maintenance of the female reproductive system; also : any of various synthetic or semisynthetic steroids (as ethinyl estradiol) that mimic the physiological effect of natural estrogens

Variants of ESTROGEN

es·tro·gen or chiefly British oes·tro·gen \ˈē-strə-jən\

estrogen

noun    (Concise Encyclopedia)

Any of a class of hormones that primarily influence the female reproductive system's development, maturation, and function. The three major estrogens—estradiol, estrone, and estriol—are produced mainly by the ovaries and placenta; the adrenal glands and the testes secrete smaller amounts. Estrogens affect the ovaries, vagina, fallopian tubes, uterus, and mammary glands and play crucial roles in puberty, menstruation, pregnancy, and parturition (labour). They also influence the structural differences between female and male bodies. In experimental animals, loss of estrogens diminishes mating desires and other behavioral patterns.

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