Definition

The visible electromagnetic radiation and warmth emitted by the sun that reaches Earth, providing energy for photosynthesis and regulating circadian rhythms in living organisms.

Example Usage

Exposure to sunlight helps your body produce vitamin D and improves mood.

Origin

From Old English 'sunleoht' (light of the sun), a straightforward compound of 'sun' + 'light.'

Fun Fact

Sunlight takes about 8 minutes and 20 seconds to travel from the sun to Earth, traveling at 186,000 miles per second.

Source: Definition backfill (hailey)

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