(Encyclopedia) Matthiessen, PeterMatthiessen, Petermăthˈəsən [key], American writer, naturalist, and adventurer, b. New York City, grad. Yale (1950). A founder (1951) of the literary Paris Review, he…
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CE5
Bones of skull
skull, the skeletal structure of the head, composed of the facial and cranial bones. The skull houses and protects the brain and most of the chief sense organs;…
(Encyclopedia) serotoninserotoninsĕrˌətōˈnĭn [key], organic compound that was first recognized as a powerful vasoconstrictor occurring in blood serum. It was partially purified, crystallized, and…
(Encyclopedia) pyorrheapyorrheapīərēˈə [key], inflammation and degeneration of the gums and other tissues surrounding the teeth. The onset of the disease is marked by bleeding of the gums. As the…
(Encyclopedia) bunion, swelling or thickening around the first joint of the big toe. The toe is forced inward and compresses the other toes. The fluid-filled sac, or bursa, in the toe joint becomes…
(Encyclopedia) prostate cancer, cancer originating in the prostate gland. Prostate cancer is one of the most common malignancies in men in the United States, second only to skin cancer, and as a…
(Encyclopedia) triceps, any muscle having three heads, or points of attachment, but especially the triceps brachii at the back of the upper arm. One head originates on the shoulder blade and two on…
(Encyclopedia) radiology, branch of medicine specializing in the use of X rays, gamma rays, radioactive isotopes, and other forms of radiation in the diagnosis and treatment of disease. X ray…
(Encyclopedia) mah jonggmah jonggmä jông [key], four-handed game, probably of Chinese origin, popular in the United States. It is played in many variations throughout China. In 1920, Joseph P.…
(Encyclopedia) orthopedicsorthopedicsôrthəpēˈdĭks [key], medical specialty concerned with deformities, injuries, and diseases of the bones, joints, ligaments, tendons, and muscles. Most of the early…
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