A form of heatstroke resulting from undue exposure to the sun's rays, probably caused by the action of actinic rays combined with high temperature; symptoms are those of heatstroke, but often without fever. SYN: heliosis, ictus solis, insolation (2), siriasis, solar fever (2).
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sun·stroke -.strōk n heatstroke caused by direct exposure to the sun
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n.
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sun·stroke (sunґstrōk″) insolation, or thermic fever; a condition produced by exposure to the sun, and marked by convulsions, coma, and a high temperature of the skin. Cf. heat exhaustion and heat stroke.Medical dictionary. 2011.