<geology> A series of beds of clay and marl in the South of England, between the upper and lower greensand of the Cretaceous period.

Origin: Cf. Norw. Gald hard ground, Icel. Gald hard snow.

(01 Mar 1998)

gauffre, gauge, gauge pressure, Gaul < Prev | Next > gaultheria, gaultheria oil, gaultherin

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