conch vs volute

conch

noun
  • A marine gastropod of the family Strombidae which lives in its own spiral shell. 

  • A musical instrument made from a large spiral seashell, somewhat like a trumpet. 

  • The shell of this sea animal. 

  • Synonym of concher (“machine used to refine the flavour and texture of chocolate”) 

  • The semidome of an apse, or the apse itself. 

verb
  • To refine the flavour and texture of chocolate by warming and grinding, either in a traditional concher, or between rollers. 

  • To play a conch seashell as a musical instrument, by blowing through a hole made close to the origin of the spiral. 

volute

noun
  • The spirals or whorls on a gastropod's shell. 

  • The casing in a centrifugal pump, whose shape is somewhat similar to architectural volutes. 

  • A scroll-shaped carving at the tuning head of a stringed musical instrument, similar to architectural volutes. 

  • The characteristic spiral curve on an Ionic capital, widely copied in other styles and in neoclassical architecture. 

  • Any marine gastropod of the family Volutidae. 

  • A spiral or scroll form. 

adj
  • Of a spring: having a spiral curve on its tail. 

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