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solar heating
solar month
solar panel
solar parallax
solar plexus
solar system
solar wind
solar year
solaria
solarimeter
solarise
solarium
solarize
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solation
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solar constant
so·lar con·stant (plural so·lar con·stants)


noun 
Definition:
 
average radiation from the Sun: the average amount of solar radiation received at the outer atmosphere at the Earth's mean distance from the Sun, equal to 0.140 watt per square centimeter
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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