phototherapeutics

[foh-tuh-ther-uh-pyoo-tiks]

noun (used with a singular verb)

the branch of therapeutics that deals with the curative use of light rays.

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. 2019