dispersion vs quantity

dispersion

noun
  • The removal of inflammation. 

  • The state of being dispersed; dispersedness. 

  • The degree of scatter of data. 

  • The separation of visible light by refraction or diffraction. 

  • A process of dispersing. 

quantity

noun
  • Length of sounds. 

  • Indicates that the entire preceding expression is henceforth considered a single object. 

  • A fundamental, generic term used when referring to the measurement (count, amount) of a scalar, vector, number of items or to some other way of denominating the value of a collection or group of items. 

  • A specific measured amount. 

  • An indefinite amount of something. 

  • A considerable measure or amount. 

  • Property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed as number and a reference. 

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