restroom vs urinal

restroom

noun
  • A room containing a public toilet: a public lavatory. 

urinal

noun
  • A plumbing fixture intended for standing urination, typically by men and boys. 

  • A glass vial used for examining or storing urine. 

adj
  • Synonym of urinary 

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