Definition for OM-PHA-LOP'TER, or OM-PHA-LOP'TIC

OM-PHA-LOP'TER, or OM-PHA-LOP'TIC, n. [Gr. ομφαλος, navel, and οπτικος, optic.]

An optical glass that is convex on both sides; commonly called a convex lens. Dict.

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