agglomerate vs boule

agglomerate

verb
  • To wind or collect into a ball; hence, to gather into a mass or anything like a mass. 

adj
  • collected into a ball, heap, or mass 

noun
  • A collection or mass. 

  • A mass of angular volcanic fragments united by heat; distinguished from conglomerate. 

  • An ice cover of floe formed by the freezing together of various forms of ice. 

boule

verb
  • To shape (a piece of dough) into a ball. 

noun
  • A single-crystal ingot produced by synthetic means. 

  • A round loaf of bread. 

  • A round piece of dough. 

  • A through-sawn log with the slices restacked in the order and orientation they originally had in the log, usually with waney edges. 

  • A council of citizens in Ancient Greece 

  • One of the bowls used in the French game of boules. 

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