Columbia Encyclopedia

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optician

(Encyclopedia)optician, filler of prescriptions for and dispenser of corrective lenses. An optician may grind lenses as instructed by the prescription of an optometrist (see optometry) or ophthalmologist (see ophth...

Arawak

(Encyclopedia)Arawak äˈräwäk [key], linguistic stock of indigenous people who came from South America and, at the time of the Spanish Conquest, occupied the islands of the Greater Antilles, the Bahamas, Trinida...

kiln

(Encyclopedia)kiln kĭl, kĭln [key], furnace for firing pottery and enamels, for making brick, charcoal, lime, and cement, for roasting ores, and for drying various substances (e.g., lumber, chemicals). Kilns may ...

tendril

(Encyclopedia)tendril, slender, sensitive structure of many climbing plants that by a response to contact (see auxin) supports the plant. Tendrils are modified stems, leaves, or leaf parts or roots. Most young tend...

battery

(Encyclopedia)battery, in criminal and tort law, the unpermitted touching of any part of the person of another, or of anything worn, carried by, or intimately associated at that moment (as a chair being sat on) wit...

insulation

(Encyclopedia)insulation ĭnˌsəlāˈshən, ĭnˌsyo͝o– [key], use of materials or devices to inhibit or prevent the conduction of heat or of electricity. Common heat insulators are, fur, feathers, fiberglass, ...

insect repellent

(Encyclopedia)insect repellent, substance applied to the skin in order to provide protection against biting insects, primarily mosquitoes, ticks, chiggers, fleas, and certain flies. The most effective such substanc...

hand, foot, and mouth disease

(Encyclopedia)hand, foot, and mouth disease (HFMD), infectious viral disease that most commonly occurs in children under five years of age. Symptoms include fever, poor appetite, and a sore throat, followed by pain...

Geertgen tot Sint Jans

(Encyclopedia)Geertgen tot Sint Jans gārtˈgən tôt sĭnt yäns [key], fl. latter half of 15th cent., Dutch painter. Geertgen is the earliest painter of record in Haarlem. He may have gone to Ghent and had some c...

James, epistle of the New Testament

(Encyclopedia)James, letter of the New Testament, traditionally classified among the Catholic, or General, Epistles. The James of its ascription is traditionally identified with St. James the Less. However, the nam...