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Webster 1913 Edition

Polyoptrum

{

Polˊy-op′tron

,

Polˊy-op′trum

, }

Noun.

[NL., from Gr.

πολύσ

many + [GREEK] seen.]

(Opt.)

A glass through which objects appear multiplied, but diminished in size.

[R.]

Webster 1828 Edition

Polyoptrum

POLYOP'TRUM

,. n. [Gr. many and to see.] A glass through which objects appear multiplied.