feliform vs tortoiseshell

feliform

noun
  • Any carnivore of the suborder Feliformia, which are regarded as cat-like. 

adj
  • Resembling a cat; applied to member of the Feliformia, a suborder within the order Carnivora consisting of cat-like carnivorans, including cats (large and small), hyenas, mongooses, civets, etc. 

tortoiseshell

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. 

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

  • Made of the covering of carapace of hawksbill turtle. 

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