lemon juice vs lemonade

lemon juice

noun
  • The juice of a sweet lemon or sweet lime. 

  • The liquid extract of lemon fruit, notably sour and often condensed, as used especially in food preparation. 

lemonade

noun
  • A clear, usually carbonated, beverage made from lemon or artificial lemon flavouring, water, and sugar. 

  • Recreational drugs of poor or weak quality, especially heroin. 

  • A flavoured beverage consisting of water, lemon, and sweetener, sometimes ice, served mainly as a refreshment. 

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