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Antunes, António Lobo

(Encyclopedia)Antunes, António Lobo, 1942–, Portuguese novelist. Trained as a physician, he was a field hospital doctor in Angola in the 1960s and later worked in a children's cancer hospital; both experiences s...

Neruda, Pablo

(Encyclopedia)Neruda, Pablo päˈblō nāro͞oˈᵺä [key], 1904–73, Chilean poet, diplomat, and Communist leader. He changed his original name, Ricardo Eliecer Neftalí Reyes Basoalto, so that his railroad-work...

lipids

(Encyclopedia)lipids, a broad class of organic products found in living systems. Most are insoluble in water but soluble in nonpolar solvents. The definition excludes the mineral oils and other petroleum products o...

uracil

(Encyclopedia)uracil yo͝orˈəsĭl [key], organic base of the pyrimidine family. It was isolated from herring sperm and also produced in a laboratory in 1900–1901. When combined with the sugar ribose in a glycos...

urinalysis

(Encyclopedia)urinalysis yo͝orˌənălˈĭsĭs [key], clinical examination of urine for the purpose of medical diagnosis. Urine is initially examined for such characteristics as color, odor, and specific gravity. ...

fencing

(Encyclopedia)fencing, sport of dueling with foil, épée, and saber. Swords have been in use since the Bronze Age, and nearly all people of antiquity practiced swordsmanship. Fencing as a contest has existed at ...

communicable diseases

(Encyclopedia)communicable diseases, illnesses caused by microorganisms and transmitted from an infected person or animal to another person or animal. Some diseases are passed on by direct or indirect contact with ...

lungs

(Encyclopedia)lungs, elastic organs used for breathing in vertebrate animals, excluding most fish, which use gills, and a few amphibian species that respire through the skin. The word is sometimes applied to the re...

venom

(Encyclopedia)venom or zootoxin, any of a variety of poisonous substances produced by animals. In poisonous snakes, venom is secreted in two poison glands, one on each side of the upper jaw, and enters the fang by ...