astro-
/æs.trəʊ-/ (bre, ipa) · /æs.troʊ-/ (ame, ipa)
astro- — 字首
1. relating to stars, planets, space, or astronomy; also used to describe something
太空；星
與星星、太空或天文學有關
relating to stars, planets, space, or astronomy; also used to describe something shaped like a star.
Ayanda dreams of becoming an **astronaut** and visiting the Moon one day.
Ayanda 夢想成為一名太空人，有朝一日登上月球。
astronaut — compound of astro- + naut (star-sailor)
Samira bought a telescope for her **astronomy** class so she could observe the rings of Saturn.
Samira 為她的天文學課程買了一臺望遠鏡，以便觀察土星環。
astronomy — astro- + nomy (star-arrangement)
Abigail checked her **astrology** chart every morning to see what the stars predicted.
Abigail 每天早上查看她的占星圖表，想知道星星的預測。
The museum's **astrobiology** section explains how scientists search for life on other planets.
博物館的天體生物學展區介紹了科學家如何在其他行星上尋找生命。
文法句型
astro- + noun (astronaut, astronomer)
astro- + adjective root (astronomical)
用法筆記
This prefix comes from Greek and is used mainly in scientific and academic vocabulary. Many common words formed with 'astro-' enter English through Latin or directly from Greek compound words. The prefix can also suggest a star-like shape (from the Greek 'astron' meaning 'star').
常見錯誤
astro- — 構詞成分
1. a combining form meaning star, the heavens, outer space, or astronomy, used to b
星；宇宙；天文
表示「星星」、「太空」或「天文學」
a combining form meaning star, the heavens, outer space, or astronomy, used to build specialised technical and scientific compound words.
Mateo chose to specialise in **astrophysics** because he wanted to understand how galaxies form.
Mateo 選擇專攻天體物理學，因為他想了解星系如何形成。
astrophysics — combined from astro- + physics
Dr. Okafor, an astrochemist at Kyoto University, analyses the molecules found in the clouds between dying stars.
京都大學的天文化學家 Okafor 博士分析在垂死恆星間的雲氣中發現的分子。
Folami presented her research in **astrobiology** at the international space-science conference in Singapore.
Folami 在新加坡舉行的國際太空科學會議上發表了她的天體生物學研究成果。
The Watanabe family visited the observatory and saw an exhibit about the **astronomical** discoveries that revealed planets beyond our solar system.
渡邊一家人參觀了天文臺，看到一項介紹天文學家如何發現太陽系以外行星的展覽。
Rin used **astrodynamics** software to calculate how a satellite could reach Mars using the least amount of fuel.
Rin 使用航天動力學軟體計算衛星如何用最少的燃料抵達火星。
文法句型
astro- + -physics (astrophysics)
astro- + -chemistry (astrochemistry)
astro- + -nautical (astronautical)
用法筆記
As a combining form, 'astro-' attaches to other Greek- or Latin-derived roots to form specialised scientific terms. Unlike a regular English prefix, it often appears as the first part of a compound whose second part is also a bound root (-nomy, -logy, -physics). These compounds are typically uncountable nouns in their scientific sense.