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Polish language

(Encyclopedia)Polish language, member of the West Slavic group of the Slavic subfamily of the Indo-European family of languages (see Slavic languages). Polish is spoken as a first language by about 38 million peopl...

week

(Encyclopedia)week, period of time shorter than the month, commonly seven days. The ancient Egyptians used a 10-day period, as did the French under the short-lived French Revolutionary calendar. In many regions a f...

actinium

(Encyclopedia)actinium ăktĭnˈēəm [key] [Gr.,=like a ray], radioactive chemical element; symbol Ac; at. no. 89; mass number of most stable isotope 227; m.p. about 1,050℃; b.p. 3,200℃±300℃; sp. gr. 10.07;...

gadolinium

(Encyclopedia)gadolinium gădəlĭnˈēəm [key], metallic chemical element; symbol Gd; at. no. 64; at. wt. 157.25; m.p. 1,312℃; b.p. 3,233℃; sp. gr. 7.898 at 25℃; valence +3. Gadolinium is a malleable, ducti...

Glendale, battle of

(Encyclopedia)Glendale, battle of: see Seven Days battles. ...

Abagtha

(Encyclopedia)Abagtha əbăgˈthə [key], in the Bible, one of Ahasuerus' seven chamberlains. ...

Saturn, in astronomy

(Encyclopedia)CE5 Saturn and its ring system as seen from Earth Saturn, in astronomy, 6th planet from the sun. Saturn has 82 confirmed natural satellites, many of which have not been named. Five of the discov...

Prochorus

(Encyclopedia)Prochorus prŏkˈərəs [key], in the New Testament, one of the seven deacons. According to tradition he became bishop of Nicomedia. ...

rummy

(Encyclopedia)rummy, card game played by two to six players with a standard deck. The cards usually rank from king down through ace. Seven cards are dealt to each player in the three- or four-hand game, one card is...