craunch
craunch · craunches
A portion of a stratum or vein left in excavating to support the roofA portion of a stratum or vein left in excavating to support the roof.
Meaning
2 sensesA portion of a stratum or vein left in excavating to support the roof.
(archaic)A grinding or crunching sound.
Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.