Essential oil
Essential oil: An oil derived from a natural substance, usually either for its healing properties or as a perfume. Some pharmaceuticals, and many over-the-counter or ‘holistic’ remedies, are based on or contain essential oils. For example, products containing camphor or eucalyptus essential oils can help relieve congestive coughs, and many essential oils are used in the practice of aromatherapy.
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Essential tremor: Uncontrollable shaking (tremor) of the hands and arms and sometimes other parts of the body. Essential tremor is the most common of all movement disorders and is estimated to affect up to 5% of people in the US. In approximately half of cases, essential tremor is inherited in an autosomal dominant manner. Several […]
- Essential vulvodynia
Essential vulvodynia: A chronic, diffuse, unremitting sensation of burning of the vulva — (the female external genital organs including the labia, clitoris, and entrance to the vagina)– a painful sensation which may extend to the perineum, thigh or buttock and is often associated with discomfort in the urethra and rectum. vulvodynia means “painful vulva.” Essential […]
- EST (expressed sequence tag)
EST (expressed sequence tag): A unique stretch of DNA within a coding region of a gene that is useful for identifying full-length genes and serves as a landmark for mapping. An EST is a sequence tagged site (STS) derived from cDNA. An STS is a short segment of DNA which occurs but once in the […]
- Estimated date of confinement (EDC)
Estimated date of confinement (EDC): The due date or estimated calendar date when a baby will be born.
- Estrogen
Estrogen: A female steroid hormone that is produced by the ovaries and, in lesser amounts, by the adrenal cortex, placenta, and male testes. Estrogen helps control and guide sexual development, including the physical changes associated with puberty. It also influences the course of ovulation in the monthly menstrual cycle, lactation after pregnancy, aspects of mood, […]