red mass

noun, often capitalized R&M

Definition of red mass

: a votive mass of the Holy Spirit celebrated in red vestments especially at the opening of courts and congresses

Examples of red mass in a Sentence

Recent Examples on the Web An owl above his shoulder clutches in his talons an indeterminate, blood-red mass, something that clearly belongs on the inside rather than dangling, exposed. Los Angeles Times, 3 Mar. 2022

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'red mass.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of red mass

1889, in the meaning defined above

Learn More About red mass

Time Traveler for red mass

Time Traveler

The first known use of red mass was in 1889

See more words from the same year

Dictionary Entries Near red mass

red marrow

red mass

red meat

See More Nearby Entries 

Statistics for red mass

Cite this Entry

“Red mass.” Dictionary, Merriam-Webster, Accessed 22 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Name That Color

  • a light greenish blue color
  • Name that color:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!