Gault
Pronunciation : Gault
Part of Speech : n.
Etymology : [Cf. Norw. gald hard ground, Icel. gald hard snow.] (Geol.)
Definition : Defn: A series of beds of clay and marl in the South of England, between the upper and lower greensand of the Cretaceous period.
Source : Webster's Unabridged Dictionary, 1913