Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «S»:
Saturated fat: A fat that is solid at room temperature and comes chiefly from animal food products. Some examples are butter, lard, meat fat, solid shortening, palm oil, and coconut oil. These fats tend to raise the level of cholesterol in the blood....
Sawbones: Slang name for a surgeon and, in particular, an orthopaedic surgeon (who may have "sawed bones" on the battlefield in days gone by).
The term "sawbones" has been in use for many years, as in: "What, don't you know what a Sawbones is, Sir," enquired Mr. Weller; "I thought everybody know'd ...
Sawyer's extractor: A device designed for first aid that suctions venom from the site of a bite of a poisonous snake or lizard....
sBCC: Superficial basal cell carcinoma. A basal cell cancer of the skin that is superficial and has not infiltrated into deeper tissue. See: Basal cell carcinoma....
Scabicide: A medication used to treat scabies.
Although they were the most effective treatment, pyrethrin-
based medications such as the lindane solution Qwell
contain benzene, and are no longer generally recommended
Scabies: Infestation of the skin by the human
itch mite, Sarcaptes scabies. The initial symptom of
scabies are red, raised bumps that are intensely itchy. A
magnifying glass will reveal short, wavy lines of red skin,
which are the burrows made by the mites. Treatment is with
any of several sca...
Scabies, crusted: A severe form of scabies caused
by delayed treatment of the initial infestation,
characterized by mite-filled lesions covered with scabs.
These lesions often fall victim to secondary infections, as
with Staphylococcus bacteria. Crusted scabies is most
common in people with im...
Scaffold: 1. In genetics, the chromosome structure consisting entirely of nonhistone proteins remaining after all the DNA and histone proteins have been removed from a chromosome.
2. In genomic mapping, a series of contigs that are in the right order but not necessarily connected in one continuous...
Scalded skin syndrome
Scalded skin syndrome: A potentially serious side
effect of infection with the Staph (Staphylococcus) bacteria that produces a specific
protein which loosens the "cement" holding the various layers of the skin
together. This allows blister formation and sloughing of the top layer of skin. ...
Scale, centigrade: Thermometer scale in which the freezing point of water is 0°C and the boiling point of water at sea level is 100°C.
The Centigrade scale is used around most of the world to indicate the temperature on a thermometer while the Fahrenheit scale is still obstinately in use in...
Scale, Fahrenheit: Thermometer scale in which the freezing point of water is 32°F and the boiling point of water 212°F.
The Fahrenheit scale is still obstinately in use in the US. This anachronism requires conversion from Centigrade
(°C) to Fahrenheit (°F), and vice versa.
Scale, skin: A thin piece of the outermost layer of skin resembling a fish scale. They represent a heaping up of the outermost layer of the skin (the stratum corneum) and can be due to a variety of skin conditions, most frequently excessive dryness....
Scales, body fat
Scales, body fat: See: Bioelectric impedance analysis....
Scaling: Abnormal shedding or accumulation of an upper layer of skin (the stratum corneum)....
Scalp ringworm: A superficial fungus infection of the skin, affecting the scalp. Also known as ringworm.
It appears as scalp scaling associated with bald spots (in contrast to seborrhea or dandruff, for instance, which do not cause hair loss). It occurs most commonly in children, especially those in...