trifocal

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Involving three foci. not-comparable
  2. Of or pertaining to corrective lenses that have three different powers per eye. not-comparable

词汇关系

衍生词
trifocalization
相关词
bifocals trifocals

词源

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