A city in south central Pennsylvania, in the Allegheny Mountains; population 46,144 (est. 2008). A noted railroad center, it is near Horseshoe Curve, where rails first crossed the Alleghenies.
Definition of Altoona in US English:
Altoona
proper nounalˈto͞onə
A city in south central Pennsylvania, in the Allegheny Mountains; population 46,144 (est. 2008). A noted railroad center, it is near Horseshoe Curve, where rails first crossed the Alleghenies.