Scottish National Dictionary (1700–)
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First published 1941 (SND Vol. II). Includes material from the 1976 supplement.
This entry has not been updated since then but may contain minor corrections and revisions.
BOUTON, n. “A projecting stone in a shaft or underground road” (Sc. 1886 J. Barrowman Sc. Mining Terms 12; m.Lth. 1942). [′bʌutən]