longitudinal vs transversal

longitudinal

adj
  • Forward and/or backward, relative to some defined direction. 

  • Relating to length, or to longitude. 

  • Running in the direction of the long axis of a body. 

  • Sampling data over time rather than merely once. 

noun
  • Any longitudinal piece, as in shipbuilding etc. 

  • A railway sleeper lying parallel with the rail. 

transversal

adj
  • Running or lying across; transverse. 

  • Exhibiting or pertaining to transversality; connecting hetergeneous elements (fields, kinds of people, etc). 

noun
  • A set containing one member from each of a collection of disjoint sets. 

  • A line which traverses or intersects any system of other lines transversely. 

  • A line intersecting a pair of parallel lines. 

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