Word
spheroid
椭球体
核心释义
a three-dimensional shape formed by rotating an ellipse around one of its axes
- 1.
由椭圆绕其长轴(长球形)或短轴(扁球形)旋转生成的旋转体。
A solid of revolution generated by rotating an ellipse about its major (prolate), or minor (oblate) axis.
- 2.
将一个椭圆绕其一条轴旋转所生成的形状。
a shape that is generated by rotating an ellipse around one of its axes
由椭圆绕其长轴(长球形)或短轴(扁球形)旋转生成的旋转体。；将一个椭圆绕其一条轴旋转所生成的形状。；球状体；回转椭球体；[医] 球形的；球状的; 球形体
用法In use
Our planet is not a perfect sphere; it is a spheroid that is slightly flattened at the poles.
用法提示：spheroid 作名词，表示旋转椭球体，句中描述行星的形状。
A rugby ball is a spheroid, so it rolls very differently from a round football.
用法提示：spheroid 作名词，在句中作表语，指椭球体形状。
The designer created a digital model of a spheroid to test how the dome would behave under heavy wind.
用法提示：spheroid 作名词，作介词 of 的宾语，表示几何形体。
it looked like a sphere but on closer examination I saw it was really a spheroid
a spheroid
spheroid 是可数名词，常用单数形式，前加 a 或 the。
相关词与表达Connections
搭配Collocations
- oblate spheroid
- 扁球体（由椭圆绕短轴旋转而成）
- The Earth is approximately an oblate spheroid, slightly flattened at the poles.地球近似为一个扁球体，在两极略微扁平。
- prolate spheroid
- 长球体（由椭圆绕长轴旋转而成）
- A rugby ball is a familiar example of a prolate spheroid.橄榄球是长球体的常见例子。
- spheroid of revolution
- 旋转椭球体
- In geometry, a spheroid of revolution is formed by rotating an ellipse about one of its axes.在几何学中，旋转椭球体是由椭圆绕其一条轴旋转而成的。
近义词Synonyms
学习提示Learner notes
记忆技巧Memory Tip
记住sphere（球）+ oid（像…的），它像球却是椭圆旋转成的，好比橄榄球或飞碟。
语境与语域Context & Register
语域：formal 常见场景：geometry、astronomy、geodesy spheroid 是较正式的科技术语，多用于几何、天文或测绘等专业讨论中；日常口语很少用到，比较常见于书面或学术语境。
发音与拼写Pronunciation & Spelling
The words share the -oid spelling and final /ɔɪd/ sound. In the target /sˈfɪˌrɔɪd/, the -oid is pronounced /rɔɪd/ with a secondary stress, so avoid /əˈvɔɪd/ is a true rhyme (stressed /ɔɪd/). The others have the same suffix but usually keep main stress on the first syllable, so they are lookalikes rather than perfect rhymes.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.