- a hormone produced in the ovary.
- one of a group of female sex hormones; an estrus-producing hormone
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
- One of a group of hormonal steroid compounds that promote the development of female secondary sex characteristics; sometimes used in the prevention of osteoporosis.
Source: Biotechnology Glossary