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acetone

(Encyclopedia)acetone prōˈpənōn [key], CH3COCH3, colorless, flammable liquid. Acetone melts at −94.8℃ and boils at 56.2℃. It is the simplest aliphatic ketone. Acetone is widely used in industry as a solve...

paraldehyde

(Encyclopedia)paraldehyde pârălˈdəhīdˌ [key], nervous system depressant similar to alcohol in its effects and used as a sedative. A colorless flammable liquid with a disagreeable odor, paraldehyde produces sl...

Kingston, city, Canada

(Encyclopedia)Kingston, city (1991 pop. 56,597), S Ont., Canada, on Lake Ontario, near the head of the St. Lawrence River and at the end of Rideau Canal from Ottawa. Kingston has probably the best harbor on the lak...

plywood

(Encyclopedia)plywood, manufactured board composed of an odd number of thin sheets of wood glued together under pressure with grains of the successive layers at right angles. Laminated wood differs from plywood in ...

butadiene

(Encyclopedia)butadiene byo͞otˌədīˈēn [key], colorless, gaseous hydrocarbon. There are two structural isomers of butadiene; they differ in the location of the two carbon-carbon double bonds in the butadiene m...

brazilwood

(Encyclopedia)brazilwood, common name for several trees of the family Leguminosae (pulse family) whose wood yields a red dye. The dye has largely been replaced by synthetic dyes for fabrics, but it is still used in...

Dalton

(Encyclopedia)Dalton, city (2020 pop. 34,417), seat of Whitfield co., extreme NW Ga., in the Appalachian valley; inc. 1847. It is a highly industrialized city in a fa...

Creusot, Le

(Encyclopedia)Creusot, Le lə krözōˈ [key], city, Saône-et-Loire dept., E central France, in Burgundy. ...

Alcobaça

(Encyclopedia)Alcobaça əlko͝obäˈsə [key], town, Leiria dist., W central Portugal, in Estremadura. The town, a fruit processing and textile center, became a center of the Cistercia...

Colom Caballeros, Álvaro

(Encyclopedia)Colom Caballeros, Álvaro, 1951–, Guatemalan political leader, president of Guatemala (2008–12), b. Guatemala City. An industrial engineer, he became a textile entrepreneur. Entering politics in t...