What causes vaginal dryness and vaginal atrophy? Vaginal atrophy is the medical term that refers to the thinning of the wall of the vagina that occurs during menopause (the time when menstrual periods have ceased) in women. Prior to menopause, the vaginal lining appears plump, bright red, and moist.
umbra. 1  shade or a shadow. 2  the dark central cone of shadow projecting from a planet or satellite on the side opposite the sun. 3  the dark central part of a sunspot. 4  Rare a phantom, or ghost. 5  Physics a perfect or complete shadow, in which no direct light is received from the source of illumination.
umbilical. pertaining to the umbilicus. umbilical cord the structure that connects the fetus and placenta; it is the lifeline of the fetus in the uterus throughout pregnancy. About 2 weeks after conception, the umbilical cord and the placenta are sufficiently developed to begin their functions.