الإنجليزية - الإنجليزية
تعريف trifocals في الإنجليزية الإنجليزية القاموس.
- Spectacles with corrective lenses that have three different powers per eye
- {i} eyeglasses with trifocal lenses, eyeglasses having lenses with three focal lengths
- spectacles that have corrective lenses of three different powers for each eye
trifocals
النطق
علم أصول الكلمات
() From tri- + focal (see focus). Coined by John Isaac Hawkins, their inventor, in 1826.Resimler
السابق
المفضلات