Webster's Revised Unabridged Dictionary · 1913

Three-square

Three-square , adjective

Having a cross section in the form of an equilateral triangle; -- said especially of a kind of file.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

Enjoying the dictionary? Support its upkeep.

Contribute on GitHub, or report issues.