photometer

n. 光度计, 曝光计 [化] 光度计

发音

US /fəˈtɑmɪtɚ/
其它
US /ˈfoʊtoʊˌmitɚ/
UK /fəˈtɒmɪtə(ɹ)/
UK /ˈfəʊtəʊˌmiːtə(ɹ)/

词形变化

photometers 复数 photometers photometered photometering photometers 三单 photometering 现在分词 photometered 过去式 photometered 过去分词

释义与例句

n.
  1. 1.

    Any of several instruments used to measure various aspects of the intensity of light.

    光度计

    物理
v.
  1. 1.

    To measure some aspect of light (from a star) using a photometer.

    天文

词汇关系

名词

同义词 2

exposure meter light meter

上位词 1

measuring device

下位词 2

cytophotometer spectrophotometer

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 *meh₁- Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Hellenic *-tron Ancient Greek -τρον (-tron) Ancient Greek μέτρον (métron)der. English -meter English photometer From photo- + -meter.

来源：wiktionary