an engine that remains in a fixed position, esp one in a building that drives generators or other machinery
Derived forms
stationary engineer
noun
stationary engine in American English
noun
an engine mounted in a fixed position, as one used for driving generators, compressors, etc.
Word origin
[1830–40]This word is first recorded in the period 1830–40. Other words that entered Englishat around the same time include: baby talk, format, grid, orientation, paraffin