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anemia

(Encyclopedia) anemiaanemiaənēˈmēə [key], condition in which the concentration of hemoglobin in the circulating blood is below normal. Such a condition is caused by a deficient number of erythrocytes…

streptococcus

(Encyclopedia) streptococcusstreptococcusstrĕpˌtəkŏkˈəs [key], any of a group of gram-positive bacteria, genus Streptococcus, some of which cause disease. Streptococci are spherical and divide by…

chlamydia

(Encyclopedia) chlamydiachlamydiakləmĭdˈēə [key], genus of microorganisms that cause a variety of diseases in humans and other animals. Psittacosis, or parrot fever, caused by the species Chlamydia…

Emmet, Thomas Addis

(Encyclopedia) Emmet, Thomas Addis, 1764–1827, Irish-American lawyer, b. Cork, Ireland, grad. Trinity College, Dublin, 1782; brother of Robert Emmet. He was trained in medicine at the Univ. of…

CS, chemical compound

(Encyclopedia) CS, chemical compound (orthochlorobenzalmalonitrile) used in riot control and, by the military, as a harassing agent. The compound is dispersed as an aerosol or as a finely divided…

astringent

(Encyclopedia) astringentastringentəstrĭnˈjənt [key], substance that shrinks body tissues. Astringent medicines cause shrinkage of mucous membranes or exposed tissues and are often used internally to…

spasm

(Encyclopedia) spasm, involuntary rigid muscle contraction, often persistent and often accompanied by pain. It usually has some underlying physical cause such as disease, strain, or injury to the…

pelvic inflammatory disease

(Encyclopedia) pelvic inflammatory disease (PID), infection of the female reproductive organs, usually resulting from infection with the bacteria that cause chlamydia or gonorrhea. The infection…