measling vs rubeola

measling

noun
  • Synonym of measle: the disease caused by M. morbillivirus, a red spot caused by the disease. 

  • A form of delamination or separation in a laminate material that results in a spotty appearance. 

rubeola

noun
  • measles 

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