What is the meaning of the word "quark"?

Definitions:

  1. fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet copy to clipboard noun
    • Quark is very popular in Germany. copy to clipboard
  2. in physics, a hypothetical truly fundamental particle in mesons and baryons copy to clipboard noun
    • There are supposed to be six flavors of quarks and their antiquarks, which come in pairs. copy to clipboard