Aura: A sensation perceived by a patient that precedes a condition affecting the brain. An aura often occurs before a migraine or seizure. It may consist of flashing lights, a gleam of light, blurred vision, an odor, the feeling of a breeze, numbness, weakness, or difficulty in speaking..
Auricle: 1. The principal projecting part of the ear. Also called the pinna. 2. Something ear shaped such as the upper chambers of the heart. Also called the atria. Auricle is not to be confounded with oracle. Neither the pinna nor the atria possess oracular powers.
Auricular: Of or pertaining to the outer ear, or to something else that is ear-shaped, such as the atrium of the heart.
Auscultate: To listen, for diagnostic purposes, to the sounds made by the internal organs of the body. For example, nurses and physicians auscultate the lungs and heart of a patient by using a stethoscope placed on the patient’s chest or back.
- Austin Flint murmur
Austin Flint murmur: A murmur due to aortic regurgitation, originating at the mitral valve when blood enters simultaneously from both the aorta and the left atrium. The murmur is named for Austin Flint who described it in 1862: “In some cases in which free aortic regurgitation exists, the left ventricle becoming filled before the auricles […]
Autism: A spectrum of neuropsychiatric disorders characterized by deficits in social interaction and communication, and unusual and repetitive behavior. Some, but not all, people with autism are non-verbal. Autism is normally diagnosed before age six and may be diagnosed in infancy in some cases. The degree of autism varies from mild to severe in different […]