photochronograph

noun

An instrument for recording very short intervals of time. The record is made by the power of a magnetic field, due to an electric signaling current, to turn the plane of polarization of light. A flash, coinciding in time and duration with the signal, is thus produced and is photographed on a moving plate.

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Meanings

nounphotochronograph (plural photochronographs)

plural photochronographs

  1. natural sciencesAn instrument for recording very short intervals of time. The record is made by the power of a magnetic field, due to an electric signaling current, to turn the plane of polarization of light. A flash, coinciding in time and duration with the signal, is thus produced and is photographed on a moving plate.
  2. astronomyAn instrument for the photographic recording of star transits.

Origin

From photo- + chronograph.

Full word history & related roots →

Rhymes & wordplay

Anagrams

chronophotograph
Cite this entry
APA

photochronograph. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/photochronograph

MLA

“photochronograph.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/photochronograph. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “photochronograph,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/photochronograph.

Source: photochronograph on Wiktionary, CC BY-SA 4.0.