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Pronunciation: fo'to-sen'si-tiv


  1. An abnormally heightened reactivity of the skin to sunlight.
  2. Responding to light, as by a photocell.

[photo + L. sensus, a feeling, fr. sentio, to feel]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.