cobra lily vs siphon

cobra lily

noun
  • The plant Chasmanthe aethiopica. 

  • Any plant in the genus Arisaema spread in eastern Asia, eastern Africa and eastern North America 

  • A carnivorous plant native to northern California and southern Oregon, Darlingtonia californica 

siphon

noun
  • A tubelike organ found in animals or elongated cell found in plants. 

  • A bent pipe or tube with one end lower than the other, in which hydrostatic pressure exerted due to the force of gravity moves liquid from one reservoir to another. 

  • A soda siphon. 

verb
  • To transfer (liquid) by means of a siphon. 

  • To steal or skim off money in small amounts; to embezzle. 

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