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stridor
A harsh or squeaky sound in breathing, often associated with a blocked larynx.
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stress
1. Pressure; strain. 2. Any condition that causes mental or physical strain or tension.
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strain
1. To filter. 2. Excessive effort. 3. Overstretching a portion of a muscle. 4. Within a species, a group of…
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strabismus
A deviation in which both eyes aren’t trained on the same spot. Also called crossed eyes or lazy eye.
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stool
Feces, or bowel movement.
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stomatitis
Inflammation of the mucosa of the mouth.
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stoma
1. Mouth-like opening. 2. An opening used for drainage.
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Stevens-Johnson reaction
An inflammatory disease characterized by rapid attack of fever, skin blisters and sores on the lips, eyes, mouth, nasal passage…
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sternum
The breastbone.
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sterile
1. Free from living microorganisms. 2. Unable to have children.
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stenosis
Narrowing of a body passage or opening.
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stapes
A small bone of the middle ear. Also called the stirrup.
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stapedioplasty
Replacement of the stapes with other materials (wire, bone, plastic).
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stapedectomy
Surgical removal of the stapes.
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sputum
Mucus secreted by the lungs, bronchi and trachea that’s ejected by coughing or clearing the throat.
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spur
A projecting body. For example, from a bone.
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sprain
A twisting or stretching injury of a ligament or muscle of a joint, with or without dislocating a bone.
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spondylosis
Narrowing of the spinal column resulting in reduction of the spaces between the vertebrae which may cause compression of the…
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spondylitis
Inflammation of the vertebrae.
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splint
A device for holding broken or injured parts in place.
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splenomegaly
Enlargement of the spleen.