Snip
A single base change, a change in which a single base in the DNA differs from the usual base at that position. “Snips” are also termed SNPs.
Millions of SNP’s have been cataloged in the human genome. Some SNPs such that which causes sickle cell are responsible for disease. Other SNPs are normal variations in the genome.
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- Snoreplasty, injection
An injection of a chemical called sodium tetradecyl sulfate that promotes stiffening of the soft palate by creating scar tissue in order to relieve snoring. The soft palate is the area above your throat in the back of your mouth. Snoring is typically caused by the fluttering of tissues of the back of the throat. […]
- Snoring
A rough rattling noise made on inspiration during sleep by vibration of the soft palate (the back of the roof of the mouth) and the uvula (the prominent structure dangling down at the back of the mouth). On inspiration, air on its way to the lungs travels by the tongue, the soft palate, the uvula, […]
- Snort
Take in a drug by nasal inhalation. For example, snorting cocaine is inhaling cocaine powder through the nose where it is absorbed through the nasal tissues into the bloodstream.
- Snot
A popular and pejorative, term for nasal mucus (mucus produced in the nose).
- Snowblindness
A burn of the cornea (the clear front surface of the eye) by ultraviolet B rays (UVB). Also called radiation keratitis or photokeratitis. The condition typically occurs at high altitudes on highly reflective snow fields or, less often, with a solar eclipse. Artificial sources of UVB can also cause snowblindness. These sources include suntanning beds, […]