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tierceron

American  
[teer-ser-uhn] / ˈtɪər sər ən /

noun

  1. (in a ribbed vault) a diagonal rib, other than an ogive, springing from a point of support.

Etymology

Origin of tierceron

1835–45; < French, equivalent to tierce tierce + -eron noun suffix

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.