prophylactic vs raincoat

prophylactic

noun
  • A prophylactic condom. 

  • A medicine which preserves or defends against disease; a preventive. 

  • Any device or mechanism intended to prevent harmful consequences. 

adj
  • Serving to prevent or protect against an undesired effect, especially disease or pregnancy 

raincoat

noun
  • A condom. 

  • A waterproof coat to be worn in the rain. 

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