Definition of path length in English:

path length

Syllabification: path length


  • The overall length of the path followed by a light ray or sound wave.
    More example sentences
    • Therefore it follows that the path length corresponding to the coherence time is called the coherence length.
    • Without amplification, a single photon traveling a marathon path length doesn't make a difference.
    • The path length for the laser flash between the quartz window and the fiber was 0.5 mm.

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Pronunciation: ˌastrəˈgāSHən
(in science fiction) navigation in outer space