Heliosis
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 Sunstroke. uncountable, usually
- 2 Sunburn. uncountable, usually
- 3 Exposure to the sun. uncountable, usually
- 4 Scorching of plants by the sun. uncountable, usually
- 5 A sunroom or solarium of the Ancient Greeks. historical, uncountable, usually
"The Greeks had their helioses and the Romans their solaria; yet heliotherapy has as yet scarcely emerged from the most empiric of performances into the dignity of a scientifically justified or rationalized procedure."
Example
More examples"The Greeks had their helioses and the Romans their solaria; yet heliotherapy has as yet scarcely emerged from the most empiric of performances into the dignity of a scientifically justified or rationalized procedure."
Etymology
From Ancient Greek ἡλίωσις (hēlíōsis, “exposure to the sun”). By surface analysis, helio- + -osis.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.