crossbar vs horizontal bar

crossbar

noun
  • Any transverse bar or piece, such as a bar across a door, or the iron bar or stock which passes through the shank of an anchor. 

  • The top of the goal structure. 

  • The top tube of a bicycle frame. 

verb
  • To mark with a pattern of transverse bars. 

horizontal bar

noun
  • A horizontally-aligned bar used in gymnastics, upon which acts of swinging are performed. 

  • The horizontal form of the fraction bar. 

  • A gymnastics event using the horizontal bar. 

  • The dash symbol (―) (used to introduce quoted text) 

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