Dictionary of Medical Terms

Lysergic acid diethylamide. A hallucinogenic drug.

Pain in the lower back.

Having to do with the lower back, the loins.

The main respiratory organs in the chest where blood is oxygenated.

A usually chronic inflammatory disease that causes abnormalities of blood vessels and connective tissue in various parts of the…

A hormone secreted by the anterior pituitary gland, responsible for stimulating ovulation in the female and testosterone production in the…

A disease spread by deer ticks characterized at first by a skin rash, headache and fever, and later by arthritis…

Consists primarily of a clear, yellowish fluid and white blood cells. Found in the lymphatic system.

Any of many small, compact structures lying in groups along the course of the lymphatic vessels and producing lymphocytes.

Inflammation of the lymph nodes.

Inflammation of a lymphatic vessel.

The vessels and structures involved in carrying lymph from the tissues to the blood.

Swelling of tissue because of the buildup of too much lymph fluid.

A type of leukocyte (white blood cell) involved in the production of antibodies and the development of immunity.

A malignant tumor of the lymphoid tissues.

A large cell that engulfs and digests foreign material.

The central part of the retina with the highest density of light receptors. Responsible for detailed vision.

A discolored, flat spot of skin.

Illness.

An infectious disease of the tropics characterized by high fever and chills. The fever typically recurs every third day. Some…

A tendency to worsen to a more serious illness or death. Commonly used to describe cancer.