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heliotherapy

American  
[hee-lee-oh-ther-uh-pee] / ˌhi li oʊˈθɛr ə pi /

noun

  1. treatment of disease by means of sunlight.

heliotherapy British  
/ ˌhiːlɪəʊˈθɛrəpɪ /

noun

  1. the therapeutic use of sunlight

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of heliotherapy

First recorded in 1885–90; helio- + therapy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The design of the home was meant to fulfill requirements of heliotherapy based on work by Dr. Nils Finsen, the 1903 Nobel Prize winner in Physiology or Medicine.

From Scientific American • Mar. 11, 2011

The operative surgical quality but that he was reluctant to shed human blood even when the end justified the means, preferring, in their natural order, heliotherapy, psychophysicotherapeutics, osteopathic surgery.

From Ulysses by Joyce, James

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.