main track
Railways (chiefly North American )
noun
A line that runs through yards and between stations, and along which scheduled train services operate; an ‘up-and-down’ or ‘running’ line.
Origin
Mid 19th century.
- audio-active
- audio amplifier
- audio-animatron
- Audio-Animatronic
- Audio-Animatronics
- audiobook
- audio cassette
- audio CD
- audio conference
- audio conferencing
- audio disc
- audio disk
- audio dub
- audio dubbing
- audio file
- audio frequency
- audiogenic
- audiogram
- audiographics
- audio guide
- audio-lingual
- audio-lingualism
- audio-lingualist
- audio-lingually
- audiologic