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Dictionary

chorion'ic gonadotro'pin

1. Also called human chorionic gonadotropin. Biochem.a hormone, produced in the incipient placenta of pregnant women, that stimulates the production of estrogen and progesterone: its presence in blood or urine is an indication of pregnancy.
2. Pharm.a commercial form of this substance, obtained from the urine of pregnant mares, used in medicine in the treatment of testicular disorders and functional uterine bleeding, and in veterinary medicine in the treatment of cystic ovaries, esp. in cows and mares. Also,chorion'ic gonadotro'phin.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

chorion

chorionic villus

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