calico vs tortoiseshell

calico

adj
  • Made of calico or resembling the color of calico cloth, having a pattern of red and contrasting areas; variegated. 

noun
  • A kind of rough cloth made from unbleached and not fully processed cotton, often printed with a bright pattern. 

  • The plant disease caused by Tobacco mosaic virus. 

tortoiseshell

adj
  • Having markings resembling covering of carapace of hawksbill turtle. 

  • Made of the covering of carapace of hawksbill turtle. 

noun
  • A domestic cat (or a rabbit, guinea-pig, etc.) whose fur has black, brown and yellow markings. 

  • The hawksbill turtle. 

  • The horny, translucent, mottled covering of the carapace of the hawksbill turtle, used as a veneer etc. 

  • Any of several butterflies, mostly of the genera Nymphalis and Aglais that have similar markings. 

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