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button

(Encyclopedia)button, knoblike appendage used on wearing apparel either for ornament or for fastening. Although buttons were sometimes used as fasteners by Greeks and Romans, they were more often merely ornamental ...

lanthanum

(Encyclopedia)lanthanum lănˈthənəm [key] [Gr.,=to lie hidden], metallic chemical element; symbol La; at. no. 57; at. wt. 138.90547; m.p. about 920℃; b.p. about 3,460℃; sp. gr. 6.19 at 25℃; valence +3. Lan...

rubidium

(Encyclopedia)rubidium ro͞obĭdˈēəm [key], metallic chemical element; symbol Rb; at. no. 37; at. wt. 85.4678; m.p. 38.89℃; b.p. 686℃; sp. gr. 1.53 at 20℃; valence +1. Rubidium is a very soft silver-white ...

hydroxide

(Encyclopedia)hydroxide hīdrŏkˈsīd [key], chemical compound that contains the hydroxyl (−OH) radical. The term refers especially to inorganic compounds. Organic compounds that have the hydroxyl radical as a f...

Newbury

(Encyclopedia)Newbury, town (1991 pop. 31,488), West Berkshire, S central England. In a farming region, Newbury trades in wool, malt, and farm products. Paper, furniture, and metal products are also made. In the Mi...

Novato

(Encyclopedia)Novato nōväˈtō [key], residential city (1990 pop. 47,585), Marin co., W Calif., N of San Fransisco on San Pablo Bay; inc. 1960. In a farming and dairying area, it produces cosmetics, metal product...

Lower Burrell

(Encyclopedia)Lower Burrell bərĕlˈ [key], city (1990 pop. 12,251), Westmoreland co., SW Pa., 20 mi (32 km) NE of Pittsburgh; inc. 1959. The city's steel-based economy declined in the 1970s and 80s, but some stee...

Barberton

(Encyclopedia)Barberton bärˈbərtən [key], city (2020 pop. 25,191), Summit co., NE Ohio, an industrial suburb ...

Santo André

(Encyclopedia)Santo André sänˈto͝o ändrĕˈ [key], city (1996 pop. 625,294), São Paulo state, S Brazil, a suburb of São Paulo. The city houses the offices of many international firms and has industries that ...

Roeselare

(Encyclopedia)Roeselare ro͞oˈsəlärə [key], Fr. Roulers, city (1991 pop. 532,872), West Flanders prov., W Belgium. It is an industrial center. Manufactures include textiles, chemicals, and metal products. At Ro...