photocontroln.

Brit.

/ˌfəʊtəʊkənˈtrəʊl/, U.S.

/ˌfoʊdəkənˈtroʊl/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, control n.

Etymology: < photo- comb. form + control n.

1. Control by means of light.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [noun] > control by

photocontrol1954

1954 Bot. Gaz. 115 360 (heading) Oxygen consumption of lettuce seed in relation to photocontrol of germination.

1975 Nature 10 Apr. 512/2 Many aspects of plant development are subject to photocontrol by way of the chromoprotein photoreceptor phytochrome.

1998 Science (Nexis) 20 Nov. 1488 Photoreceptor diversity and redundancy..appear to be the key features in the photocontrol of the circadian clock in higher plants.

2. Surveying. (Frequently in form photo control.) A system of precisely surveyed reference points (in terms of which subordinate local surveys are carried out) consisting of points that can be identified on aerial photographs; the establishment or availability of such a system of points.

ΘΚΠ

the world > the earth > earth sciences > geography > map-making > map-making or surveying using photography > [noun] > aerial photograph as control for local surveys

photocontrol1956

1956 Nature 3 Mar. 419/1 Good progress was made with geodetic surveys, and the triangulation and photocontrol work over twenty thousand square miles..was completed.

1967 F. H. Moffitt Photogrammetry (ed. 2) v. 126 The rigid requirements for precision photo control for analytic control extension, for cadastral surveys, and for certain types of highway design mapping, make it necessary to pre-mark a great deal of the control points.

2002 Geospatial Solutions (Nexis) 1 Feb. 54 The company uses airborne GPS and inertial acquisition combined with ground surveys to provide photo control.

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

单词	photocontrol
释义	photocontroln. Brit. /ˌfəʊtəʊkənˈtrəʊl/, U.S. /ˌfoʊdəkənˈtroʊl/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, control n. Etymology: < photo- comb. form + control n. 1. Control by means of light. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [noun] > control by photocontrol1954 1954 Bot. Gaz. 115 360 (heading) Oxygen consumption of lettuce seed in relation to photocontrol of germination. 1975 Nature 10 Apr. 512/2 Many aspects of plant development are subject to photocontrol by way of the chromoprotein photoreceptor phytochrome. 1998 Science (Nexis) 20 Nov. 1488 Photoreceptor diversity and redundancy..appear to be the key features in the photocontrol of the circadian clock in higher plants. 2. Surveying. (Frequently in form photo control.) A system of precisely surveyed reference points (in terms of which subordinate local surveys are carried out) consisting of points that can be identified on aerial photographs; the establishment or availability of such a system of points. ΘΚΠ the world > the earth > earth sciences > geography > map-making > map-making or surveying using photography > [noun] > aerial photograph as control for local surveys photocontrol1956 1956 Nature 3 Mar. 419/1 Good progress was made with geodetic surveys, and the triangulation and photocontrol work over twenty thousand square miles..was completed. 1967 F. H. Moffitt Photogrammetry (ed. 2) v. 126 The rigid requirements for precision photo control for analytic control extension, for cadastral surveys, and for certain types of highway design mapping, make it necessary to pre-mark a great deal of the control points. 2002 Geospatial Solutions (Nexis) 1 Feb. 54 The company uses airborne GPS and inertial acquisition combined with ground surveys to provide photo control. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1954
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