Franklin spectacles


Frank·lin spec·ta·cles

(frank'lin), an early form of bifocal spectacles in which the lower half of the lens is for near vision, the upper half for distant vision. Synonym(s): divided spectacles

Franklin,

Benjamin, U.S. physicist and statesman, 1706-1790. Franklin spectacles - an early form of bifocal spectacles in which the lower half of the lens is for near vision, the upper half for distant vision. Synonym(s): divided spectaclesfranklinic - denoting static or frictional electricity.