deployable vs on wheels

deployable

noun
  • Something, such as a software package or a military resource, that may be deployed. 

adj
  • Able to be deployed. 

  • Ejectable, separable from the aircraft. 

on wheels

prep
  • Used other than figuratively or idiomatically: see on, wheels. (Having wheels affixed to the bottom, and so transportable; synonym of wheeled). 

  • Mobile; able to be moved; especially, synonym of on the move. 

  • To a large degree, excessively. 

How often have the words deployable and on wheels occurred in a corpus of books? (source: Google Ngram Viewer )