astronomicaladj.
英 æstrə'nɒmɪk(ə)l | 美 ,æstrə'nɑmɪkl
中文adj. 天文的，天文学的；极大的
词根词源
astronomical (adj.)1550s, from astronomy + -ical. Popular meaning "immense, concerning very large figures" (as sizes and distances in astronomy) is attested from 1899. Astronomical unit (abbreviation A.U.) "mean distance from Earth to Sun," used as a unit of measure of distance in space, is from 1909. Related: Astronomically.
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