What is the projecting solid angle formed by the meeting of two vaults, growing more obtuse as it approaches the summit called?
groin — (Arch.) The projecting solid angle formed by the meeting of two vaults, growing more obtuse as it approaches the summit. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00