conditioner vs extender

conditioner

noun
  • someone who trains athletes or racehorses 

  • An agricultural machine that crimps and crushes newly cut hay to promote faster and more even drying. 

  • hair conditioner 

  • fabric conditioner, fabric softener 

  • anything that improves the condition of something 

extender

noun
  • A runner, or quick-draw. (from sense #2) 

  • Any of various substances designed to extend any of several properties of a material. 

  • Any substance added to food to bulk it out, with a higher protein content than a filler. 

  • A phrase that extends an expression to include further members of a set, e.g. "and stuff", "or something". 

  • Any of various components designed to extend the length of a device. 

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