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Webster 1913 Edition

Plano-conical

Pla′no-con′ic-al

,

Adj.

[

Plano-

+

conical

.]

Plane or flat on one side, and conical on the other.

Grew.

Webster 1828 Edition

Plano-conical

PLANO-CON'ICAL

,

Adj.

[ plain and conical.]

Plain or level on one side and conical on the other.