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thunderstorm

(Encyclopedia)thunderstorm, violent, local atmospheric disturbance accompanied by lightning, thunder, and heavy rain, often by strong gusts of wind, and sometimes by hail. The typical thunderstorm caused by convect...

thunder

(Encyclopedia)thunder, sound produced along a path of a lightning flash, caused by the rapid heating and expansion of the adjacent air; lightning can heat air to temperatures as much as five times hotter than those...

hail, in meteorology

(Encyclopedia)hail, precipitation in the form of pellets composed of ice or of ice and snow, occurring at any time of the year, usually during the passage of a cold front or during a thunderstorm. Small hailstones ...

Romulus

(Encyclopedia)Romulus rŏmˈyo͞oləs [key], in Roman legend, founder of Rome. When Amulius usurped the throne of his brother Numitor, king of Alba Longa, he forced Numitor's daughter, Rhea Silvia, to become a vest...

lightning

(Encyclopedia)lightning, electrical discharge accompanied by thunder, commonly occurring during a thunderstorm. The discharge may take place between one part of a cloud and another part (intracloud), between one cl...

storm

(Encyclopedia)storm, disturbance of the ordinary conditions of the atmosphere attended by wind, rain, snow, sleet, hail, or thunder and lightning. Types of storms include the extratropical cyclone, the common, larg...

tornado

(Encyclopedia)tornado, dark, funnel-shaped cloud containing violently rotating air that develops below a heavy cumulonimbus cloud mass and extends toward the earth. The funnel twists about, rises and falls, and whe...

cloud

(Encyclopedia)CE5 Approximate heights of some types of clouds cloud, aggregation of minute particles of water or ice suspended in the air. Cloudiness (or proportion of the sky covered by any form of cloud),...

Beethoven, Ludwig van

(Encyclopedia)Beethoven, Ludwig van lŭdˈwĭg văn bāˈtōvən, Ger. lo͝otˈvĭkh fän bātˈhōfən, 1770–1827, German composer. He is universally recognized as one of the greatest composers of the Western Eu...

Franklin, Benjamin

(Encyclopedia)Franklin, Benjamin, 1706–90, American statesman, printer, scientist, and writer, b. Boston. The only American of the colonial period to earn a European reputation as a natural philosopher, he is bes...

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