dioptometer
名词 n.
英文释义
名词 n.
- An instrument used to measure ocular refraction, in order to prescribe corrective lenses.
词形变化
词源
Etymology tree
Proto-Indo-European *dwóh₁
Proto-Indo-European *dwi-
Proto-Hellenic *dwi-
Ancient Greek δῐ- (dĭ-)bor.
Latin di-bor.
English di-
Ancient Greek ὀπτός (optós)der.
English opto-
Proto-Indo-European *meh₁-
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English dioptometer
From di- + opto- + -meter.
Proto-Indo-European *dwóh₁
Proto-Indo-European *dwi-
Proto-Hellenic *dwi-
Ancient Greek δῐ- (dĭ-)bor.
Latin di-bor.
English di-
Ancient Greek ὀπτός (optós)der.
English opto-
Proto-Indo-European *meh₁-
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English dioptometer
From di- + opto- + -meter.
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数据来源: Wiktionary