flexure vs pluck

flexure

noun
  • The act of bending or flexing; flexion. 

  • A turn; a bend; a fold; a curve. 

  • A curve or bend in a tubular organ. 

  • The last joint, or bend, of the wing of a bird. 

  • The small distortion of an astronomical instrument caused by the weight of its parts; the amount to be added or subtracted from the observed readings of the instrument to correct them for this distortion. 

verb
  • To introduce a flexure into; to bend or flex. 

pluck

noun
  • An instance of plucking or pulling sharply. 

  • Guts, nerve, fortitude or persistence. 

  • The lungs, heart with trachea and often oesophagus removed from slaughtered animals. 

  • Cheap wine. 

verb
  • To take or remove (someone) quickly from a particular place or situation. 

  • To pull something sharply; to pull something out 

  • To pull or twitch sharply. 

  • To remove feathers from a bird. 

  • To play a string instrument pizzicato. 

  • To gently play a single string, e.g. on a guitar, violin etc. 

  • Of a glacier: to transport individual pieces of bedrock by means of gradual erosion through freezing and thawing. 

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