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Definition of photocontrol in English:

photocontrol

noun

  • 1Control by means of light.

  • 2Surveying. (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.

Origin

1950s; earliest use found in The Botanical Gazette. From photo- + control.

Pronunciation

photocontrol

/ˌfəʊtəʊkənˈtrəʊl/