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Casey, William Joseph

(Encyclopedia)Casey, William Joseph, 1913–87, American public official, b. New York City. After graduating from Fordham (B.S., 1934) he obtained a law degree from St. Johns Univ. (1937). During World War II he be...

Ramón y Cajal, Santiago

(Encyclopedia)Ramón y Cajal, Santiago säntyäˈgō rämōnˈ ē kähälˈ [key], 1852–1934, Spanish histologist, widely considered the father of neuroscience. He was a university professor at Valencia (1881–8...

vertebrate

(Encyclopedia)vertebrate, any animal having a backbone or spinal column. Verbrates can be traced back to the Silurian period. In the adults of nearly all forms the backbone consists of a series of vertebrae. All ve...

Nemertinea

(Encyclopedia)CE5 A. Ribbon worm, representative of the phylum Nemertinea B. Internal anatomy of a ribbon worm Nemertinea nĕmərtĭnˈēə [key], phylum of elongated, often flattened, marine Worms, sometimes c...

mercury poisoning

(Encyclopedia)mercury poisoning, tissue damage resulting from exposure to more than trace amounts of the element mercury or its compounds. Elemental mercury (the silver liquid familiar from thermometers) is the mos...

aggression

(Encyclopedia)aggression, a form of behavior characterized by physical or verbal attack. It may appear either appropriate and self-protective, even constructive, as in healthy self-assertiveness, or inappropriate a...

eating disorders

(Encyclopedia)eating disorders, in psychology, disorders in eating patterns that comprise four categories: anorexia nervosa, bulimia, rumination disorder, and pica. Anorexia nervosa is characterized by self-starvat...

herbal

(Encyclopedia)herbal, early botanical book containing descriptions and illustrations of herbs and plants with their properties, chiefly those qualities that made them useful as medicines or condiments. Most of the ...

narcolepsy

(Encyclopedia)narcolepsy, a sleep disorder characterized by excessive daytime sleepiness and recurring unwanted episodes of sleep (“sleep attacks”). People with narcolepsy may abruptly fall asleep at almost any...

Bleuler, Eugen

(Encyclopedia)Bleuler, Eugen oiˈgən bloiˈ lər [key], 1857–1939, Swiss psychiatrist. He taught (1898–1927) at the Univ. of Zürich, serving concurrently as director of Zürich's Burghölzi Asylum. Bleuler is...