Oral contraceptive

Oral contraceptive: A birth control pill taken by mouth. Most oral contraceptives include both estrogen and progesterone. When given in certain amounts and at certain times in the menstrual cycle, these hormones prevent the ovary from releasing an egg for fertilization. See also birth control.
Found on http://www.medterms.com/script/main/art.asp?articlekey=11776

oral contraceptive

Any orally effective preparation designed to prevent conception. ... (05 Mar 2000) ...
Found on http://www.mondofacto.com/facts/dictionary?oral+contraceptive

oral contraceptive

a compound, usually hormonal, taken orally in order to block ovulation and prevent the occurrence of pregnancy.
Found on http://www.encyclo.co.uk/local/21001

oral contraceptive

(from the article `contraception`) There are several types of drugs that alter hormonal levels in women; these drugs suppress the hormonal signal sent by the pituitary gland for the ... Most oral contraceptives contain a combination of estrogen and progesterone. The combination, like the hormone balance of normal pregnancy, prevents ......
Found on http://www.britannica.com/eb/a-z/o/25

oral contraceptive

(OC) Type: Term Definitions: 1. any orally effective preparation designed to prevent conception.
Found on http://www.medilexicon.com/medicaldictionary.php?t=20087

Oral Contraceptive

Any synthetic steroid that is similar to the female hormones, estrogen and progesterone, and is taken orally by regular doses to prevent pregnancy. Oral contraceptives alter the woman's hormonal balance, which prohibits ovulation to prevent pregnancy from occurring.
Found on http://www.pregnology.com/AZ/O/2
No exact match found