Scottish National Dictionary (1700–)
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First published 1956 (SND Vol. IV).
This entry has not been updated since then but may contain minor corrections and revisions.
GASH, n.1 Sc. usage in Coal-mining: “a break or opening in the strata, usually filled with sand, gravel, or other loose rocks; a sand dyke” (Sc. 1886 J. Barrowman Mining Terms 30).
