Definition of allegheny in English English dictionary
a river that rises in Pennsylvania and flows north into New York and then back south through Pennsylvania again to join the Monongahela River at Pittsburgh which is the beginning of the Ohio River
{i} river that flows through New York State and joins the Ohio River in Pennsylvania
a range of mountains which go from Virginia to Pennsylvania in the eastern US, and are part of the Appalachians. Ranges of the Appalachian system in Pennsylvania, Maryland, Virginia, and West Virginia, U.S., west of and generally parallel to the Blue Ridge Mountains. They extend some 500 mi (800 km) south-southwestward, with heights of more than 4,800 ft (1,460 m). The eastern slope is sometimes called the Allegheny Front, while the Allegheny Plateau spans the entire upland area from the Cumberland Plateau to the Mohawk Valley in New York
Word History: The Iroquois who inhabited western Pennsylvania considered the Allegheny to be the upper part of the Ohio River. Iroquois Ohio means "beautiful river" (oh-, "river" -io, "good, fine, beautiful"). When the Delaware, an Algonquian people, moved to western Pennsylvania in the 18th century and displaced the Iroquois, they translated Iroquoian Ohio into Delaware, yielding welhik-heny, "most beautiful stream" (welhik, "most beautiful" heny, "stream"). The name Welhik-heny was then anglicized as Allegheny. River in Pennsylvania and New York, U.S. It rises in Potter county, Pa. , loops northwest into New York, turns back into Pennsylvania, and unites with the Monongahela to form the Ohio River at Pittsburgh, Pa. It is 325 mi (523 km) long; its chief tributaries are the Clarion, the Kiskiminetas, and French Creek. Several dams make the river navigable from Pittsburgh to East Brady, Pa
A perennial herb (Pachysandra procumbens), native to the southeast United States and sometimes grown as an ornamental or ground cover for its usually mottled leaves