trifocal
adjective
tri·fo·cal
| \ (ˌ)trī-ˈfō-kəl
\
\
Definition of trifocal
(Entry 1 of 2)
: having three focal lengths
trifocal
nounDefinition of trifocal (Entry 2 of 2)
1
trifocals plural
: eyeglasses with trifocal lenses
2
: a trifocal glass or lens
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More Definitions for trifocal
trifocal
adjective
tri·fo·cal
| \ (ˈ)trī-ˈfō-kəl
\
\
Medical Definition of trifocal
(Entry 1 of 2)
1
: having three focal lengths
2
of an eyeglass lens
: having one part that corrects for near vision, one for intermediate vision (as at arm's length), and one for distant vision
trifocal
nounMedical Definition of trifocal (Entry 2 of 2)
1
: a trifocal glass or lens
2
trifocals plural
: eyeglasses with trifocal lenses