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sun dance

(Encyclopedia)sun dance, ceremony typical of the Plains Indians of North America. The ceremony was performed in the summer and lasted from two to eight days. Some of the ceremony was secret. Smoking, fasting, and o...

canker

(Encyclopedia)canker, small sore on the inside of the mouth. A canker appears as a shallow, whitish ulcer surrounded by a thin, red area. It is tender, sometimes painful, and may occur singly or as one of a group o...

Waubeshiek

(Encyclopedia)Waubeshiek wôˈbəshēk [key], c.1794–c.1841, Native North American prophet, also known as White Cloud. He was a friend and adviser of Black Hawk and by prophesying victory was chiefly responsible ...

Meade, George Gordon

(Encyclopedia)Meade, George Gordon, 1815–72, Union general in the American Civil War, b. Cádiz, Spain. Graduated from West Point in 1835, he resigned from the army the next year and became a civil engineer. In 1...

infant respiratory distress syndrome

(Encyclopedia)infant respiratory distress syndrome (IRDS) or hyaline membrane disease hīˈəlĭn, –līnˌ [key], respiratory distress syndrome of newborns, most common in infants born prematurely or by cesarean ...

einsteinium

(Encyclopedia)einsteinium Ä«nˈstÄ«ËŒnÄ“É™m, Ä«nstīˈ– [key] [for Albert Einstein], artificially produced radioactive chemical element; symbol Es; at. no. 99; mass no. of most stable isotope 252; m.p. about 860â...

Pentecost

(Encyclopedia)Pentecost pĕnˈtəkôst [key] [Gr.,=fiftieth], important Jewish and Christian feast. The Jewish feast of Pentecost, in Hebrew Shavuot, the Feast of Weeks, one of the three pilgrimage festivals, arose...

Passover

(Encyclopedia)Passover, in Judaism, one of the most important and elaborate of religious festivals. Its celebration begins on the evening of the 14th of Nisan (first month of the religious calendar, corresponding t...

Rathenau, Walther

(Encyclopedia)Rathenau, Walther välˈtər räˈtənou [key], 1867–1922, German industrialist, social theorist, and statesman. Son of Emil Rathenau (1838–1915), founder of the German public utilities company Al...

oilbird

(Encyclopedia)oilbird, common name for an owllike, cave-dwelling bird, Steatornis caripensis, belonging to the family Steatornithidae. It spends its days in dark caves, maneuvering by means of a batlike sonar devic...