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polyurethanes

(Encyclopedia)polyurethanes pŏlˌēyo͝orˈəthānz [key], group of plastics that may be either thermosetting or thermoplastic. Polyurethane can be made into both flexible and rigid foams. The flexible foam is oft...

viscose process

(Encyclopedia)viscose process vĭsˈkōs [key], method widely used for the commercial preparation of rayon. Cellulose, prepared from either wood pulp or, less commonly, cotton linters, is treated with sodium hydrox...

duck

(Encyclopedia)duck, common name for wild and domestic waterfowl of the family Anatidae, which also includes geese and swans. It is hunted and bred for its meat, eggs, and feathers. Strictly speaking, duck refers to...

alder

(Encyclopedia)alder ôlˈdər [key], name for deciduous trees and shrubs of the genus Alnus of the family Betulaceae (birch family), widely distributed, especially in mountainous and moist areas of the north temper...

Council Bluffs

(Encyclopedia)Council Bluffs, city (2020 pop. 62,799), seat of Pottawattamie co., SW Iowa, on and below bluffs overlooking the Missouri River, opposite Omaha, Nebr.; ...

coffin

(Encyclopedia)coffin, closed receptacle for a corpse. Its purpose is usually to protect and to aid preservation of the body, although in the past some have believed that it may confine the spirit of the deceased. B...

fetish

(Encyclopedia)fetish fĕtˈĭsh [key], inanimate object believed to possess some magical power. The fetish may be a natural thing, such as a stone, a feather, a shell, or the claw of an animal, or it may be artific...

Frankfort

(Encyclopedia)Frankfort, city (2020 pop. 28,602), state capital and seat of Franklin co., N central Ky., on both sides of the Kentucky River, in the heart of the blue...

Macon

(Encyclopedia)Macon māˈkən, māˈkŏn [key], city (1990 pop. 106,612), seat of Bibb co., central Ga., at the head of navigation on the Ocmulgee River; inc. 1823. It is the industrial, processing, and shipping ce...

Kent, Rockwell

(Encyclopedia)Kent, Rockwell, 1882–1971, American painter, muralist, wood engraver, lithographer, book and magazine illustrator, and writer, b. Tarrytown, N.Y. Kent studied with William Merritt Chase and Robert H...