n. A site where electricity supplied by long-distance (high-voltage) transmission lines is transformed and/or regulated for local (low-voltage) distribution.
n. A satellite police station serving one neighborhood or part of a larger jurisdiction.
The Century Dictionary and Cyclopedia
n. A subordinate station: as, a police substation.
n. A subsidiary station to supplement a main station.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a subsidiary station where electricity is transformed for distribution by a low-voltage network
Word Usage
"Everything at a substation is hot, in that shock the bejeezus out of you sense."