Allegheny
ɪˈgeɪAllegheny Mountains
Based on the Random House Dictionary, © Random House, Inc. 2013.
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| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
Allegheny Mountains or Alleghenies (ˌælɪˈɡeɪnɪ) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —pl n | |
| a mountain range in Pennsylvania, Maryland, Virginia, and West Virginia: part of the Appalachian system; rising from 600 m (2000 ft) to over 1440 m (4800 ft) | |
| Alleghenies or Alleghenies | |
| —pl n | |
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Western part of the Appalachian Mountains, extending from northern Pennsylvania southwest to southwestern Virginia.
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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allegheny
county, southwestern Pennsylvania, U.S., consisting of a hilly region on the Allegheny Plateau bounded to the southeast by the Monongahela and Youghiogheny rivers and to the northeast by the Allegheny River. The Ohio, Allegheny, and Monongahela rivers converge in the centre of the county to form an area known as the Golden Triangle; this was a strategic point of contention between the French and the English, who fortified the area with Fort Duquesne (1754) and Fort Pitt (1761), respectively. With the defeat of Pontiac's warriors (1763), the area opened up to settlers who founded Pittsburgh (1764), which became the county seat when Allegheny county was formed in 1788. The county's name is derived from the Delaware Indian word oolikhanna, meaning "good river." The Triangle is now Pittsburgh's central business district and the location of the popular Point State Park
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