one-track
adjective
ˈwən-ˈtrak 
: marked by often narrowly restricted attention to or absorption in just one thing
a one-track mind
Word History
First Known Use
1915, in the meaning defined above
- harmonic minor scale
- harmonic motion
- harmonic progression
- harmonic range
- harmonic row
- harmonic sequence of vowels
- harmonic series
- harmonic sign
- harmonic stop
- harmonic suture
- harmonic synthesizer
- harmonic theory
- harmonica
- harmonically
- harmonicalness
- harmonicas
- harmonichord
- harmonichords
- harmonicism
- harmonicist
- harmonicists
- harmonicon
- harmonicons
- harmonics
- harmonies