Mining. Obs. rare. Also 8 squod. = SHOAD.
1674. Ray, Coll. Words, 120. The tinners [in Cornwall] find the Mine by the Shoad (or as they call it Squad) which is loose stones of tin mixed with Earth.
1728. Chambers, Cycl., s.v. Shoaled, Sometimes it [shoad] is called Squad, and Squod.
c. 1830. Mar. Edgeworth, Lame Jervas, ii. Loose ore of tin mixed with the earth, which in those days we used to call shoad or squad. We call it squad to this day, master, interrupted one of the miners.