photopticadj.

Brit.

/fə(ʊ)ˈtɒptɪk/, U.S.

/fəˈtɑptɪk/,

/ˌfoʊˈtɑptɪk/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, optic adj.

Etymology: < photo- comb. form + optic adj. In sense 1 after German photoptisch (W. A. Nagel 1894, in Biol. Centralbl. 14 387; quot. 1894 at sense 1 is from an English abstract of this paper). With sense 2 compare earlier photopic adj.

†1. Biology. Of an animal: able to detect light; responding to a change in illumination. Obsolete. rare.

ΚΠ

1894 Jrnl. Royal Microsc. Soc. 441 The critical experiment implies observing that the animal moves on being suddenly shaded or illumined. Animals may be ‘skioptic’, or ‘photoptic’, or ‘photoskioptic’, without being ‘ikonoptic’.

2. Physiology. = photopic adj.

ΘΚΠ

the world > physical sensation > sight and vision > types of vision > [adjective] > photopic or scotopic

scotopic1913

photopic1915

photoptic1949

1949 Amer. Jrnl. Bot. 36 198/2 The scattered red light was just on the threshold of photoptic vision for the dark-adapted eye.

1955 C. W. Allen Astrophysical Quantities v. 103 (heading) Relative visibility K_λ for normal brightness..,the photoptic curve (International) (cone vision at fovea).

1974 Vision Res. 24 329 (title) Photoptic spectral sensitivity of the neon tetra..found by the use of a dorsal light reaction.

1999 Product News Network (Nexis) 1 Jan. The Coherent-Ealing Catalog Division of Coherent Incorporated offers the 26-7625 Photoptic Eye Response Filter.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	photoptic
释义	photopticadj. Brit. /fə(ʊ)ˈtɒptɪk/, U.S. /fəˈtɑptɪk/, /ˌfoʊˈtɑptɪk/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, optic adj. Etymology: < photo- comb. form + optic adj. In sense 1 after German photoptisch (W. A. Nagel 1894, in Biol. Centralbl. 14 387; quot. 1894 at sense 1 is from an English abstract of this paper). With sense 2 compare earlier photopic adj. †1. Biology. Of an animal: able to detect light; responding to a change in illumination. Obsolete. rare. ΚΠ 1894 Jrnl. Royal Microsc. Soc. 441 The critical experiment implies observing that the animal moves on being suddenly shaded or illumined. Animals may be ‘skioptic’, or ‘photoptic’, or ‘photoskioptic’, without being ‘ikonoptic’. 2. Physiology. = photopic adj. ΘΚΠ the world > physical sensation > sight and vision > types of vision > [adjective] > photopic or scotopic scotopic1913 photopic1915 photoptic1949 1949 Amer. Jrnl. Bot. 36 198/2 The scattered red light was just on the threshold of photoptic vision for the dark-adapted eye. 1955 C. W. Allen Astrophysical Quantities v. 103 (heading) Relative visibility K_λ for normal brightness..,the photoptic curve (International) (cone vision at fovea). 1974 Vision Res. 24 329 (title) Photoptic spectral sensitivity of the neon tetra..found by the use of a dorsal light reaction. 1999 Product News Network (Nexis) 1 Jan. The Coherent-Ealing Catalog Division of Coherent Incorporated offers the 26-7625 Photoptic Eye Response Filter. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1894
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