differential vs two-way

differential

adj
  • Having differences in speed or direction of motion. 

  • Of or pertaining to a difference. 

  • Of or pertaining to differentiation or the differential calculus. 

  • Dependent on, or making a difference; distinctive. 

noun
  • One of two coils of conducting wire so related to one another or to a magnet or armature common to both, that one coil produces polar action contrary to that of the other. 

  • A form of conductor used for dividing and distributing the current to a series of electric lamps so as to maintain equal action in all. 

  • An infinitesimal change in a variable, or the result of differentiation. 

  • The differential gear in an automobile, etc. 

  • A qualitative or quantitative difference between similar or comparable things. 

two-way

adj
  • Moving or occurring in opposite directions. 

  • Involving the mutual action or participation of two parties. 

  • Playing both offense and defense in the same game. 

  • Having or involving exactly two variables; bivariate. 

  • Allowing traffic in two directions. 

  • Permitting communication in two directions, i.e. both transmitting and receiving. 

  • Utilising both Western and Indigenous knowledge systems; bothways. 

noun
  • A serving of Cincinnati chili with spaghetti. 

How often have the words differential and two-way occurred in a corpus of books? (source: Google Ngram Viewer )