astronomical
音标：
英音/ ˌæstrəˈnɒmɪk(ə)l / 美音/ ˌæstrəˈnɑːmɪk(ə)l /
听听基本释意：
外刊例句：
“The expense for this is astronomical, and there is a debate in Taiwan, and elsewhere, over whether it is better served acquiring asymmetric capabilities,” the analyst said.
这位分析师表示：“这样做的费用是天文数字，台湾和其他地方都在争论是否更适合获取不对称能力。”
—Washington Times
The astronomical phenomenon will be less dramatic in the UK, but a partial eclipse could be visible in some parts of the country.
在英国，天文现象不会那么引人注目，但在该国的某些地区可能会看到日偏食。
—BBC
“By offering astronomical interest rates, the Walmart-backed platform can muscle other financial institutions out of the way and choke off the competition,” he said.
“通过提供天文数字的利率，沃尔玛支持的平台可以排挤其他金融机构并阻止竞争，”他说。
—Washington Times
基本释意：
adjective
relating or belonging to the science of astronomy
天文（学）的，天体的；（数量、价格或收费）天文数字的，极其巨大的
同义词：
astronomic,astronomic,galactic
短释义：
Astra and aster are the Latin and Greek words for star, and the first four letters of astronomical, a-s-t-r, are a scramble of the word star. Astronomy includes the study of stars, but planets and other objects and happenings in space are also part of astronomical studies. Considering how large everything in space is, it makes sense that very, very large or uncountable things sometimes get the description astronomical.
如果你躺在一大片田野上或屋顶上，抬头一看，天空又宽又高，其大小是天文数字——比巨大还大。天空中的一切，包括恒星和行星，也是天文学的，因为它是天文学科学的一部分。
长释义：
Astra and aster are the Latin and Greek words for star, and the first four letters of astronomical, a-s-t-r, are a scramble of the word star. Astronomy includes the study of stars, but planets and other objects and happenings in space are also part of astronomical studies. Considering how large everything in space is, it makes sense that very, very large or uncountable things sometimes get the description astronomical.
Astra和aster是拉丁语和希腊语中“星星”的意思，而天文学的前四个字母“astr”是“星星”一词的乱序。天文学包括对恒星的研究，但行星和其他物体以及太空中发生的事件也是天文学研究的一部分。考虑到太空中的所有物体都有多大，非常非常大或不可数的物体有时会被描述为天文数字，这是有道理的。
文学例句：
He had been a major figure in one of the great scientific dramas of the 1920s, the quest to confirm Einstein’s theory of relativity by astronomical observation.
他是 20 年代最伟大的科学戏剧之一的主要人物，即通过天文观测来证实爱因斯坦的相对论。
—Big Science by Michael Hiltzik
By the time he was done tallying the accessories, including gloves for the grave digger, the total cost was astronomical.
当他清点完配件（包括掘墓人的手套）时，总成本已是天文数字。
—Killers of the Flower Moon by David Grann
In the 1960s, however, interest in the large-scale problems of astronomy and cosmology was revived by a great increase in the number and range of astronomical observations brought about by the application of modern technology.
然而，到了 20 世纪 60 年代，由于现代技术的应用，天文观测的数量和范围大幅增加，人们对天文学和宇宙学的大规模问题重新产生了兴趣。
—A Brief History of Time: And Other Essays by Stephen Hawking
词源：
astronomical (adj.)1550s, “pertaining to astronomy,” from astronomy + -ical. The 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 the Earth to the Sun,” used as a unit of measure of distance in space, is from 1909. Related: Astronomically.Related entries & more
下面是词源的翻译（机器翻译比较难翻，参考着看）
astronomical (adj.)1550s，“与天文学有关”，来自 astronomy + -ical。流行含义“巨大，涉及非常大的数字”（如天文学中的大小和距离）从 1899 年开始得到证实。天文单位（缩写 AU）“从地球到太阳的平均距离”，用作测量距离的单位太空，来自 1909 年。相关：天文学。相关条目及更多
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