halmos

Noun

The symbol “∎” marking the end of a proof.

Origin / Etymology

Named after Hungarian-born US mathematician Paul Halmos (1916-2006) who first used it in mathematics, after seeing it marking the end of articles in magazines.

Synonyms

tombstone

Scrabble Score: 0

halmos is not valid in Scrabble (US) TWL Dictionary
halmos is not valid in Scrabble (MW) Merriam-Webster Dictionary
halmos is not valid in International Collins CSW Dictionary

Words With Friends Score: 0

halmos is not valid in Words With Friends