blackhead vs decoration

blackhead

noun
  • A form of histomoniasis in poultry, characterized by cyanotic discoloration on the bird's head. 

  • A comedo, a skin blemish, a type of acne vulgaris, where a pore becomes clogged with a dark, hard, cheesy keratin-filled substance forming a hard black "head" on the skin's surface. 

  • A scaup: any of various ducks of the genus Aythya. 

decoration

noun
  • Specifically, any mark of honor to be worn upon the person, as a medal, cross, or ribbon of an order of knighthood, bestowed for services in war, great achievements in literature, art, etc. 

  • The use of exotic sugars as decoys to distract the immune system of a host 

  • Any item that adorns, enriches, or beautifies; something added by way of embellishment or ornamentation. 

  • The act of adorning, embellishing, or honoring; ornamentation. 

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