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Gulf War syndrome

(Encyclopedia)Gulf War syndrome, popular name for a variety of ailments experienced by veterans after the Persian Gulf War. Symptoms reported include nausea, cramps, rashes, short-term memory loss, fatigue, difficu...

gynecology

(Encyclopedia)gynecology gīnˌəkŏlˈəjē [key], branch of medicine specializing in the disorders of the female reproductive system. Modern gynecology deals with menstrual disorders, menopause, infectious diseas...

giraffe

(Encyclopedia)giraffe, African ruminant mammal, genus Giraffa, living in open savanna S of the Sahara. Giraffes have historically been considered to be one species, G. camelopardalis, with a number of subspecies, b...

allegiance

(Encyclopedia)allegiance, in political terms, the tie that binds an individual to another individual or institution. The term usually refers to a person's legal obligation of obedience to a government in return for...

chorionic villus sampling

(Encyclopedia)chorionic villus sampling (CVS) or chorionic villus biopsy (CVB) kōrˌē-ŏnˈĭk, kôrˌ– [key], diagnostic procedure in which a sample of chorionic villi from the developing placenta is removed f...

entail

(Encyclopedia)entail, in law, restriction of inheritance to a limited class of descendants for at least several generations. The object of entail is to preserve large estates in land from the disintegration that is...

Shang

(Encyclopedia)Shang shäng [key] or Yin, dynasty of China, which ruled, according to traditional dates, from c.1766 b.c. to c.1122 b.c. or, according to some modern scholars, from c.1523 b.c. to c.1027 b.c. It is t...

Pocahontas

(Encyclopedia)Pocahontas pōkəhŏnˈtəs [key], c.1595–1617, Native North American woman, daughter of Chief Powhatan. Pocahontas, meaning “playful one” (her birth name was Amonute, and her family called her ...

parthenogenesis

(Encyclopedia)parthenogenesis pärˌthənōjĕnˈəsĭs [key] [Gr.,=virgin birth], in biology, a form of reproduction in which the ovum develops into a new individual without fertilization. Natural parthenogenesis ...

acne

(Encyclopedia)acne, common inflammatory disease of the hair follicles and sebaceous glands characterized by blackheads, whiteheads, pustules, nodules and, in the more severe forms, by cysts and scarring. The lesion...