An oily or slippery substance. A vaginal lubricant may be helpful for women who feel pain during intercourse because of vaginal dryness.
- Lucid dreaming
The process of being aware that one is dreaming. Some researchers believe that in lucid dreaming, the individual may be able to change the outcome of the dream or control their degree of participation in the imaginary (dream) environment. Lucid dreams have been described as arising from either the sleeping or waking state. A number […]
a landmark in the history of infectious disease.
1. Relating to syphilis, caused by it, or suffering from it. 2. A person with syphilis. From lues, an old name for syphilis.
Left upper lobe, the top-left lobe of the lung.
Referring to the five lumbar vertebrae, the disks below them, and the corresponding area of the lower back. The lumbar vertebrae and their disks are situated below the thoracic vertebrae and above the sacral vertebrae in the spinal column and are surrounded by soft tissues, including ligaments and large muscles.