adj.
Pronunciation: ' s ō -l ə r, - ˌ lär
Function: adjective
Etymology: Middle English, from Latin solaris, from sol sun; akin to Old English & Old Norse s ō l sun, Lithuanian saul ė , Greek h ē lios
Date: 15th century
1 : of, derived from, relating to, or caused by the sun < solar phenomena>
2 : measured by the earth's course in relation to the sun < solar time> <a solar year> also : relating to or reckoned by solar time
3 a : produced or operated by the action of the sun's light or heat < solar energy> < solar cooker> b : utilizing the sun's rays especially to produce heat or electricity <a solar house> also : of or relating to such utilization < solar design> < solar subsidies>