capillary vs siphon

capillary

noun
  • A narrow tube. 

  • Any of the small blood vessels (from 5 to 10 micrometres/micrometers (μm) in diameter) that connect arteries to veins (They are the smallest blood vessels in the body: they convey blood between the arterioles and venules). 

adj
  • Of or pertaining to a narrow tube. 

  • Of, relating to, or caused by surface tension. 

  • Of or pertaining to hair. 

siphon

noun
  • 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. 

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

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 capillary and siphon occurred in a corpus of books? (source: Google Ngram Viewer )