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Webster 1913 Edition

Grapholite

Graph′o-lite

,

Noun.

[Gr.

γράφειν

to write +

-lite

: cf. F.

grapholithe

.]

Any species of slate suitable to be written on.

Webster 1828 Edition

Grapholite

GRAPH'OLITE

,

Noun.

[supra.] A species of slate proper for writing on.