cluster vs thrombus

cluster

noun
  • A sequence of two or more words that occur in language with high frequency but are not idiomatic; a chunk, bundle, or lexical bundle. 

  • A small metal design that indicates that a medal has been awarded to the same person before. 

  • A set of bombs or mines released as part of the same blast. 

  • A logical data storage unit containing one or more physical sectors (see block). 

  • An ensemble of bound atoms or molecules, intermediate in size between a molecule and a bulk solid. 

  • A group of computers that work together. 

  • A group or bunch of several discrete items that are close to each other. 

  • A number of individuals grouped together or collected in one place; a crowd; a mob. 

  • A clusterfuck. 

  • A subset of a population whose members are sufficiently similar to each other and distinct from others as to be considered a distinct group; such a grouping in a set of observed data that is statistically significant. 

  • A group of consonants. 

  • A group of galaxies or stars that appear near each other. 

  • A secundal chord of three or more notes. 

verb
  • To cover with clusters. 

  • To collect into clusters. 

  • To form a cluster or group. 

thrombus

noun
  • A blood clot formed from platelets and other elements that forms in a blood vessel in a living organism, and causes thrombosis or obstruction of the vessel at its point of formation or travel to other areas of the body. 

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