英语词汇asteroid的起源、历史背景-英语词源词典

词汇	asteroid
词源	asteroid. An asteroid, from the Greek aster, “star,” and eidos, “form,” is also called a minor planet, being one of the thousands of small planets, the largest less than 500 miles in diameter, that circle the sun mainly between the orbits of Jupiter and Mars. Asteroid was coined in 1804 by British astronomer Sir William Herschel, who so named the minor planets. See earthlight for a word Herschel’s son coined.
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