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atrophic rhinitis

Rhinitis due to atrophy of the mucous membrane lining the nose, causing it to become thin, dry and crusty.

atrophic vaginitis

Inflammation of the vagina.

atrophy

Withering or weakening of a body tissue due to disease or disuse.

attenuated

A microbe that has been treated so as to be less able to cause disease. Attenuated bacteria or viruses are used in many immunisations, to stimulate the body's immune system against a disease without actually causing that disease.

attenuation

Treatment of a microbe so that it is less able to cause disease. Attenuated bacteria or viruses are used for many immunisations, to stimulate the body's immune system against a disease without actually causing that disease.

audiometry

The measurement of hearing.

auditory

Relating to the sense of hearing.

autoantibody

An antibody directed against the body's own tissues, typically produced in autoimmune disorders

autoantibody test

A laboratory test used to help diagnose autoimmune disorders.

autoimmune

Any condition caused by the body’s immune response against its own tissues.

autoimmune screen

A test that help to diagnose disorders caused by a reaction of the immune system against the body's own cells and tissues.

autonomic

The part of the nervous system supplying muscles such as the heart and bowels, known as involuntary muscles.

avascular necrosis

A disease that results from the temporary or permanent loss of blood supply to the bones.

AXR

An abbreviation for abdominal x-ray.

ayurveda

An ancient system of Indian medicine.

angiographic

Relating to X-ray imaging of the blood vessels following the injection of a dye to improve visibility

acellular

Containing no cells.

arthrodesis

Fusion or rigidity between two bones.

arthroscopic debridement

Keyhole surgery to the lining of a joint.

arthrofibrosis

A complication following an injury or trauma to a joint where excessive scar tissue leads to painful restriction of joint motion.

AVM

An AVM or arteriovenous malformation forms when arteries connect directly to veins. This direct connection forms a high-pressure shunt or fistula. The veins are not able to handle the pressure of the blood coming directly from the arteries. The veins stretch and enlarge to create a “nidus”. Usually there are multiple feeding vessels in an AVM and many draining veins.

AVMs

An AVM or arteriovenous malformation forms when arteries connect directly to veins. This direct connection forms a high-pressure shunt or fistula. The veins are not able to handle the pressure of the blood coming directly from the arteries. The veins stretch and enlarge to create a “nidus”. Usually there are multiple feeding vessels in an AVM and many draining veins.