photographometer

名词 n.
中文释义

英文释义

名词 n.
  1. An instrument for determining the sensibility of the plates employed in photographic processes to luminous rays. dated

词形变化

photographometers plural

词源

Etymology tree
Proto-Indo-European *bʰeh₂-
Proto-Indo-European *bʰéh₂os
Proto-Hellenic *pʰáwos
Ancient Greek φᾰ́ος (phắos)
Ancient Greek φῶς (phôs)
Ancient Greek φωτο- (phōto-)der.
English photo-
Proto-Indo-European *gerbʰ-
Proto-Hellenic *grə́pʰō
Ancient Greek γράφω (gráphō)
Ancient Greek -γρᾰ́φος (-grắphos)der.
English -graph
English photograph
Ancient Greek -ο- (-o-)der.
Latin -o-bor.
English -o-
Proto-Indo-European *meh₁-
Proto-Indo-European *-tḗr
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English photographometer
From photograph + -o- + -meter.
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