swelly
swelly · swellies
An abnormal local thickening of a seam of coalAn abnormal local thickening of a seam of coal.
Meaning
1 senses(UK, historical)An abnormal local thickening of a seam of coal.
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.