In scientific and technical uses. A dark or contrasting mark on the disc of the moon, the sun, or other celestial object. Cf. sunspot, n. 2.
| 单词 | θ364 |
| 释义 | the world > the universe > heavenly body > [noun] > disc > mark on (1) spot1565 In scientific and technical uses. A dark or contrasting mark on the disc of the moon, the sun, or other celestial object. Cf. sunspot, n. 2. |
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