bifocal

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Having two focal lengths. not-comparable
    — His hair is black and well greased, with individual strands of gray, and he wears wire-rimmed bifocals with a subtle brownish tint.
  2. Divided into two parts, one of which corrects for distance vision and the other for near vision. not-comparable

词汇关系

衍生词
bifocality
相关词
bifocals trifocals

词源

By surface analysis, bi- + focal, or, by surface analysis, bi- + foc(us) + -al.
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