solar: [15] Solar comes from Latin sōlāris, a derivative of sōl ‘sun’. This went back to the same ultimate Indo-European base, *su-, that produced English sun. Solarium [19] was borrowed from another Latin derivative, sōlārium, which denoted a ‘sundial’ as well as a ‘balcony, flat rooftop, or other part of a house exposed to the sun’. Solstice [13] means etymologically the ‘sun standing still’. It comes from Latin sōlstitium, a compound formed from sōl and stit-, the past participial stem of sistere ‘make stand’. => solarium, solstice
solar (adj.)
mid-15c., "pertaining to the sun," from Latin solaris "of the sun," from sol "sun" (see sol). Meaning "living room on an upper story" is from Old English, from Latin solarium (see solarium). Old English had sunlic "solar."
Astrological sense from 1620s. Meaning "operated by means of the sun" is from 1740; solar power is attested from 1915, solar cell from 1955, solar panel from 1964. Solar system is attested from c. 1704; solar wind is from 1958. Solar plexus (1771) "complex of nerves in the pit of the stomach," apparently so called from its central position in the body (see plexus).
例文
1. Saturn is the second biggest planet in the solar system.
土星は太陽系で2番目に大きい惑星である。
2.The roof has been ingeniously designed to provide solar heating.
屋根は巧みに設計されており、太陽熱暖房を提供することができる。
3.the heliocentric model of the solar system
太陽系の日心モデル
4.the planets of our solar system
太陽系の惑星
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5.renewable sources of energy such as wind and solar power