Meaning of gault in English:

gault

Pronunciation /ɡɔːlt/

noun

mass noun
  • 1

    (also gault clay)
    A thick, heavy clay.

    ‘The single-storey building is steel-framed, and clad externally with buff (gault) bricks with wide raked joints, giving a strip effect.’
    • ‘The feasibility study into remanufacturing traditional gault clay peg tiles is near completion, thanks to the support of the local authorities and English Heritage.’
    1. 1.1Geology A series of Cretaceous clays and marls forming strata in southern England.

Origin

Late 16th century possibly related to Old Swedish galt, neuter of galder ‘barren’.