Noah Webster
Omphalopter
OM'PHALOPTER,
OMPHALOP'TIC, noun [Gr. navel, and optic.]
An optical glass that is convex on both sides; commonly called a convex lens.
OM'PHALOPTER,
OMPHALOP'TIC, noun [Gr. navel, and optic.]
An optical glass that is convex on both sides; commonly called a convex lens.