Gynecology, study of women’s diseases, with special emphasis on the female reproductive organs. Areas of special concentration for gynecologists include disorders of the uterus, or womb, the organ where an unborn fetus develops; ovaries, the organs that produce ova, or eggs, which are the female sex cells; fallopian tubes, the channels connecting the uterus and ovaries; cervix, the organ that connects the vagina and uterus; vagina, the canal between the cervix and vulva, or external female organs; and breasts. See Reproductive System; Human Sexuality.
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A stamp depicting the image of Hanaoka Seishu. Hanaoka Seishu (1760-1835), Japanese physician and pioneer of anesthetic surgery. Hanaok... -
In the N and W United States the era of mechanized agriculture began with the invention of such farm machines as the reaper, the cultivator,...
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Fluid Mechanics, physical science dealing with the action of fluids at rest or in motion, and with applications and devices in engineering u...