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phototherapeutics

[foh-tuh-ther-uh-pyoo-tiks]
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noun (used with a singular verb)
  1. the branch of therapeutics that deals with the curative use of light rays.
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Origin of phototherapeutics

First recorded in 1900–05; photo- + therapeutics
Related formspho·to·ther·a·peu·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018