The term SOLAR is related to the sun and its ENERGY. The crossword solutions for this term are ECLIPSE (7 letters), RAY (3 letters), FLARE (5 letters), ENERGY (6 letters), PLEXUS (6 letters), and SYSTEM (6 letters). An ECLIPSE is an event that occurs when the moon passes between the sun and Earth, blocking out the sun's light. Rays are beams of light that come from the sun. Flares are sudden bursts of intense radiation from the sun. Solar ENERGY is ENERGY that comes from the sun and is used to generate electricity. PLEXUS is a network of nerves or vessels in the body. Finally, a SYSTEM is a set of connected parts that work together to form a complex whole.