1. (noun) sudden prostration due to exposure to the sun or excessive heat

• siriasis
• sunstroke
• thermic fever

2. (noun) therapeutic exposure to sunlight

• heliotherapy

1. (noun) sudden prostration due to exposure to the sun or excessive heat

• heat hyperpyrexia
• heatstroke

2. (noun) incident solar radiation

• solar radiation

3. (noun) therapeutic exposure to sunlight

• therapy

1. (noun) sudden prostration due to exposure to the sun or excessive heat

• insolate
• solarise
• solarize
• sun

2. (noun) incident solar radiation

• insolate
• solarise
• solarize
• sun

3. (noun) therapeutic exposure to sunlight

• insolate
• solarise
• solarize
• sun