curd vs thrombus

curd

noun
  • The coagulated part of any liquid. 

  • The edible flower head of certain brassicaceous plants. 

  • The part of milk that coagulates when it sours or is treated with enzymes; used to make cottage cheese, dahi, etc. 

verb
  • To form curd; to curdle. 

  • To cause to coagulate or thicken; to cause to congeal; to curdle. 

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 curd and thrombus occurred in a corpus of books? (source: Google Ngram Viewer )