Double-headed
Encyclopedia
Double-headed may refer to:
- Double-headed eagleDouble-headed eagleThe double-headed eagle is a common symbol in heraldry and vexillology. It is most commonly associated with the Byzantine Empire and the Holy Roman Empire. In Byzantine heraldry, the heads represent the dual sovereignty of the Emperor and/or dominance of the Byzantine Emperors over both East and...
, common symbol in heraldry and vexillology - Double-headingDouble-headingIn railroad terminology, double-heading or double heading indicates the use of two locomotives at the front of a train, each operated individually by its own crew. The practice of triple-heading involves the use of three locomotives....
, the use of at least two steam locomotives at the front of a train - Double-headed rail, a type of cross-section of rail used in early railway track construction
- Double-headerDoubleheader (baseball)A doubleheader is a set of two baseball games played between the same two teams on the same day in front of the same crowd. In addition, the term is often used unofficially to refer to a pair of games played by a team in a single day, but in front of different crowds and not in immediate...
, when two sporting events occur in the same venue back-to-back