corona

/kəˈrəʊnə/ (bre, ipa) · [kɚˈonə] /kəˈrəʊnə/ (ame, ipa) · [kɚˈonə] /kə-ˈrō-nə/ (ame, mw)

corona — 名詞

  • coronasingular
  • coronasplural

1. 冠狀病毒引起的感染或疾病；COVID-19的簡稱

1.名詞B1
釋義

冠狀病毒

COVID-19簡稱

冠狀病毒引起的感染或疾病；COVID-19的簡稱

例句

The Watanabe family caught corona that winter and stayed home for two weeks.

渡邊一家那年冬天感染了冠狀病毒，在家隔離了兩週。

informal: caught corona

Many schools closed their doors when the corona outbreak spread across the city.

當冠狀病毒疫情在城裡蔓延時，許多學校都關閉了。

同義詞
  • COVID-19

    the formal name for the disease caused by SARS-CoV-2

  • coronavirus

    slightly more formal than just 'corona'

文法句型

corona

corona virus

the corona pandemic

用法筆記

In informal spoken English, 'corona' is widely used as a short form of 'coronavirus' or 'COVID-19'. In formal writing, 'COVID-19' or 'coronavirus disease' is preferred. This sense emerged rapidly in 2020 and is now the most frequent use of the word in everyday conversation.

常見錯誤

❌I have a corona in my throat.
✅I have corona / I have COVID-19.
💡'Corona' refers to the disease itself, not a physical object or symptom.

2. 一層微弱的光圈，在夜間圍繞著月亮，或在日全食期間出現在太陽周圍的光環

2.名詞B1
釋義

光環

日月周圍的光環

一層微弱的光圈，在夜間圍繞著月亮，或在日全食期間出現在太陽周圍的光環

例句

The moon had a faint corona around it that night, making the sky look magical.

那天晚上月亮周圍有一圈淡淡的月暈，讓天空看起來很夢幻。

the corona around [celestial body]

Amara saw a white glow circling the sun during the eclipse through her special glasses.

Amara 透過特殊眼鏡觀看日食時，看到太陽周圍有一圈白色的光芒。

corona visible during solar eclipse

同義詞
  • halo

    more common everyday word for a circle of light around the moon or sun

  • ring of light

    descriptive phrase, less technical than 'corona'

文法句型

the corona

a corona

用法筆記

In everyday conversation, most people use 'halo' or 'ring of light' instead of 'corona' for the moon. 'Corona' is the technical term, more common in astronomy.

常見錯誤

❌The corona around the moon was bright red.
✅The corona around the moon was a pale white or silver ring.
💡The corona is typically white or very faint, not bright red.

3. 太陽或其他恆星最外層的大氣層，溫度極高，只在日全食時可用肉眼看到

3.名詞B2
釋義

日冕

恆星最外層大氣

太陽或其他恆星最外層的大氣層，溫度極高，只在日全食時可用肉眼看到

例句

The Sun's corona reaches temperatures of over one million degrees Celsius.

太陽的日冕溫度高達攝氏一百萬度以上。

the Sun's corona + temperature fact

Scientists study the corona because it is much hotter than the Sun's surface.

科學家研究日冕，因為日冕的溫度遠比太陽表面高。

同義詞

文法句型

the corona

the Sun's corona

用法筆記

This sense is used almost exclusively in astronomy and astrophysics. It is always singular and usually preceded by 'the'.

常見錯誤

❌The corona of the sun is cool and dark.
✅The corona of the sun is extremely hot, over a million degrees.
💡The corona is much hotter than the Sun's surface, a fact that surprises many learners.

4. 身體部位（如牙齒或頭骨）的頂端圓形部分

4.名詞C1
釋義

冠狀部

牙齒或頭骨頂端

身體部位（如牙齒或頭骨）的頂端圓形部分

例句

The dentist examined the corona of the molar before deciding whether to fit a crown.

牙醫檢查了那顆臼齒的冠狀部，然後決定是否需要裝牙冠。

corona of the tooth / dental context

A break in the corona of the skull can be dangerous and needs immediate treatment.

頭骨冠狀部骨折可能很危險，需要立刻就醫。

同義詞
  • crown

    the everyday word, much more common in patient-facing medical contexts

文法句型

the corona of [body part]

用法筆記

This is a technical anatomical term. In dentistry, 'corona' refers to the crown of the tooth (the visible part above the gum). 'Corona' is much less common than the everyday word 'crown' in medical contexts; patients are more likely to hear 'crown' from their dentist.

常見錯誤

❌The corona of my tooth hurts.
✅The crown of my tooth hurts.
💡In everyday speech, 'crown' is standard; 'corona' in this sense is a technical term used in medical writing.

5. 某些花卉（如水仙、黃水仙）花冠內側的喇叭形或杯形附屬結構

5.名詞C1
釋義

副花冠

水仙花的杯狀結構

某些花卉（如水仙、黃水仙）花冠內側的喇叭形或杯形附屬結構

例句

The bright yellow corona of the daffodil stood out against the green garden in spring.

水仙花鮮黃色的副花冠在初春的綠色花園中格外醒目。

corona of [flower]: daffodil

Botany students studied the corona of the narcissus to see how it attracts bees.

植物學學生研究了水仙花的副花冠，觀察它如何吸引蜜蜂。

同義詞
  • trumpet

    common word for the corona of a daffodil, used by gardeners

  • cup

    descriptive term for short, cup-shaped coronas

  • crown

    informal equivalent in gardening contexts

文法句型

the corona of [flower name]

用法筆記

This is a specialist botanical term. Most gardeners and florists simply say 'trumpet', 'cup', or 'crown' instead of 'corona'. The term is primarily used in plant identification guides and botany textbooks.