achromatic vs bluey

achromatic

adj
  • Having only the diatonic notes of the scale; not modified by accidentals. 

  • Free from color; transmitting light without color-related distortion. 

  • Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion. 

  • Being achromatic in subject 

  • Uncolored; not absorbing color from a fluid; -- said of tissue 

bluey

noun
  • The metal lead. 

  • A person with red hair. 

  • A bluebottle. 

  • A bushman's blanket. 

  • A disposable underpad. 

  • A collection of clothes and other belongings rolled up into a bundle for carrying; a swag. 

  • A blue film. 

  • A blue singlet, especially one from the Bonds clothing label. 

  • A blue cattle dog, especially a blue heeler. 

adj
  • Having a colour similar to blue. 

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