Webster's Revised Unabridged Dictionary · 1913

Tilestone

Tilestone , noun

1.

(Geology) A kind of laminated shale or sandstone belonging to some of the layers of the Upper Silurian.

2.

A tile of stone.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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