acidic vs tart

acidic

adj
  • Of or relating to acid; having the character of an acid. 

  • Containing a high percentage of silica; opposed to basic. 

  • Having a pH less than 7, or being sour, or having the strength to neutralize alkalis, or turning a litmus paper red. 

tart

adj
  • Sharp to the taste; acid; sour. 

  • high or too high in acidity. 

  • Sharp; keen; severe. 

verb
  • To practice prostitution. 

  • To practice promiscuous sex. 

  • To dress garishly, ostentatiously, whorishly, or sluttily. 

noun
  • Any woman with loose sexual morals. 

  • A prostitute. 

  • A melt (block of wax for use in a tart burner). 

  • A type of small open pie, or piece of pastry, containing jelly or conserve; a sort of fruit pie. 

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