Pronunciation: (här'lum), [key]
1. a section of New York City, in the NE part of Manhattan.
2. a tidal river in New York City, between the boroughs of Manhattan and the Bronx, which, with Spuyten Duyvil Creek, connects the Hudson and East rivers. 8 mi. (13 km) long.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.