tierceron

[ teer-ser-uhn ]

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

Origin of tierceron

1
1835–45; <French, equivalent to tiercetierce + -eron noun suffix

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024