单词	photometry
释义	photometry noun pho·​tom·​e·​try fō-ˈtä-mə-trē  : a branch of science that deals with measurement of the intensity of light also : the practice of using a photometer Example Sentences Recent Examples on the Web Another method of discovering exoplanets is transit photometry. Daisy Hernandez, Popular Mechanics, 12 July 2019 The space agency had to miniaturize the technology used in precision photometry, including an active thermal control system and a steady astronomical camera. David Grossman, Popular Mechanics, 8 Dec. 2017 Word History Etymology New Latin photometria, from phot- + -metria -metry First Known Use 1807, in the meaning defined above Medical Definition photometry noun pho·​tom·​e·​try fō-ˈtäm-ə-trē  plural photometries : a branch of science that deals with measurement of the intensity of light also : the practice of using a photometer
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