one-track: Meaning and Definition of

one-track

Pronunciation: (wun'trak"), [key]
— adj.
  1. having only one track.
  2. unable or unwilling to cope with more than one idea, action, etc., at a time; narrow: a one-track mind.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.