Scottish National Dictionary (1700–)
Hide Quotations Hide Etymology
About this entry:
First published 1968 (SND Vol. VII).
This entry has not been updated since then but may contain minor corrections and revisions.
PLANE, n.2 Sc. mining usage: “a working room driven at right angles to or facing the plane joints” (Sc. 1886 J. Barrowman Mining Terms 51); hence adv. comb. plane-course adv. phr. on plane, “in the direction facing the plane-joints” (Ib.).
