Astronomy. Each of two circles of the celestial sphere (the tropic of Cancer and the tropic of Capricorn: see phrases) that are parallel to the…
| 单词 | θ68 |
| 释义 | the world > the universe > celestial sphere > circle of celestial sphere > [noun] > lesser circle > tropic (4) tropic1503 Astronomy. Each of two circles of the celestial sphere (the tropic of Cancer and the tropic of Capricorn: see phrases) that are parallel to the… tropic line1577 (a) Geography = sense A. 2a; (b) Astronomy = sense A. 1c. tropic line1667 A circle of the terrestrial or celestial sphere; e.g. †ecliptic line, equinoctial line, †tropic line. Now rare. tropic circle1893 (a) Geography = sense A. 2a; (b) Astronomy = sense A. 1c. |
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