圆顶 (yuán dǐng) — dome (especially in astronomy)

Definition

A dome-shaped roof, typically the rotating structure on top of an observatory housing a telescope. In astronomy, 圆顶 often refers to the observatory dome itself rather than just its shape.

noun
dome (especially in astronomy)
Measure word ·

Examples

  • 圆顶
    Tiān wén tái de yuán dǐng kě yǐ dǎ kāi, fāng biàn guān cè xīng kōng.
    The dome of the observatory can open to facilitate stargazing.
  • 圆顶
    Zhè zuò jiàn zhù yǒu yí gè jù dà de yuán dǐng, lǐ miàn fàng zhe wàng yuǎn jìng.
    This building has a huge dome with a telescope inside.
  • Yuán dǐng tiān wén tái shì yán jiū xīng xing de zhòng yào chǎng suǒ.
    A dome observatory is an important place for studying stars.

Origin

Compound word
构词法gòucífǎ
偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

圆 gives roundness and 顶 gives the top, forming a dome.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 圓; 圆 is its simplified writing.

Meaning part形符xíngfú
wéi
Sound part声符shēngfú
yuányuán
Same sound today

This is about the traditional form 圓, not the simplified 圆. In 圓, 囗 surrounds 員, and the inner part of 員 is an old circle picture.

Open 圆 →

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 頂; 顶 is its simplified writing.

Meaning part形符xíngfú
head
Sound part声符shēngfú
dīngdǐng
Same sound today

The traditional form 頂 pairs 頁, meaning head, with 丁, which supplies the sound; the simplified 顶 is a later abbreviation.

Open 顶 →

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