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progressive lens

División en sílabas: pro·gres·sive lens

Definición de progressive lens en inglés:

sustantivo

(usually progressive lenses) An eyeglass lens having a smooth transition between parts with different focal lengths, correcting for vision at all distances.
Oraciones de ejemplo
  • Trifocals can have visible lines or progressive lenses.
  • Among those given progressive lenses, vision deteriorated at only half the rate of the other kids.
  • Bifocals have been on their way out ever since the invention of progressive lenses, which gradually change the visual viewing area for distance and reading.

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Palabra del día apathetic
Pronunciación: apəˈθɛtɪk
adjective
showing or feeling no interest, enthusiasm, or concern