trifocal lens
[ trī-fō′kəl, trī′fō′- ]
n.
A lens having one section that corrects for distant vision, a second section that corrects for intermediate vision, and a third that corrects for near vision.
Words nearby trifocal lens
trifluoperazine,
trifluoride,
trifluorochloromethane,
trifluralin,
trifocal,
trifocal lens,
trifold,
trifoliate,
trifoliate orange,
trifoliolate,
trifolium