Pronunciation: (brOO'um, brOOm, brō'um), [key]
1. a four-wheeled, boxlike, closed carriage for two or four persons, having the driver's perch outside.
a. (formerly) a limousine having an open driver's compartment.
b. an early type of automobile resembling a coupé, often powered by an electric motor.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.