Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

high mass

noun, often capitalized H&M

Definition of high mass

  1. :  a mass marked by the singing of prescribed parts by the celebrant and the choir or congregation

Seen and Heard

What made you want to look up high mass? Please tell us where you read or heard it (including the quote, if possible).