leopard vs tortoiseshell

leopard

noun
  • Any of various nymphalid butterflies of the genus Phalanta, having black markings on an orange base. 

  • The snow leopard (Panthera uncia), a large wild cat native to Asia. 

  • A similar-looking, large wild cat named after the leopard. 

  • A lion passant guardant. 

  • Panthera pardus, a large wild cat with a spotted coat native to Africa and Asia, especially the male of the species (in contrast to leopardess). 

  • The clouded leopard (Neofelis nebulosa), a large wild cat native to Asia. 

tortoiseshell

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

  • 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. 

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

  • Made of the covering of carapace of hawksbill turtle. 

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