Acrocyanosis
Acrocyanosis: Blueness of the hands and feet, usually due to inadequate circulation.
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- Acromegaly
Acromegaly: Condition due to the production of too much growth hormone by the pituitary gland after the end of adolescence. When there is secretion of too much growth hormone before the end of adolescence, gigantism results. People with pituitary gigantism can truly be giants; they can sometimes end up over 7 or 8 feet in […]
- Acromioclavicular joint
Acromioclavicular joint: A gliding joint located between the acromion (a projection of the scapula that forms the point of the shoulder) and the clavicle (the collar bone). It is served and supported by the capsular, superior, and inferior acromioclavicular ligaments; the articular disk; and the coracoclavicular (trapezoid and conoid) ligaments. Abbreviated AC joint.
- Acromion
Acromion: The projection of the scapula (the shoulder blade) that forms the point of the shoulder. The acromion is part of the scapula. It protrudes laterally (away from the midline) and is triangular in shape. The top of the shoulder is acromial. The word “acromion” comes from the Greek “akron”, peak + “omos”, shoulder = […]
- Acrophobia
Acrophobia: An abnormally excessive and persistent fear of heights. Sufferers experience severe anxiety even though they usually realize that, as a rule, heights pose no real threat to them. Derived from the Greek “acron”, height + “phobos”, fear.
- Acrylamide
Acrylamide: A chemical created in foods when starches and other carbohydrates are overheated (over 120°C or 250°F) during cooking. There is concern that acrylamide may be a carcinogen (cause cancer). Acrylamide is used in papermaking, ore processing, permanent-press fabrics, and dye manufacture. Acrylamide is also polymerized to form polyacrylamides which are used as water-soluble stabilizers, […]