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Webster 1913 Edition
Argillaceous
Arˊgil-la′ceous
,Adj.
[L.
argillaceus
, fr. argilla
.] Of the nature of clay; consisting of, or containing, argil or clay; clayey.
Argillaceous sandstone
(Geol.)
, a sandstone containing much clay.
– Argillaceous iron ore
, the clay ironstone.
– Argillaceous schist
or state
See
Argillite
.Webster 1828 Edition
Argillaceous
ARGILLA'CEOUS
,Adj.