declination

/ˌdek.lɪˈneɪ.ʃən/ (bre, ipa) · /ˌdek.ləˈneɪ.ʃən/ (ame, ipa) · /ˌde-klə-ˈnā-shən/ (ame, mw)

declination — 名詞

  • declinationsingular
  • declinationsplural

1. In astronomy, the angle that shows how far north or south a star, planet, or oth

1.名詞C2
釋義

赤緯

天體相對天球赤道的角距

In astronomy, the angle that shows how far north or south a star, planet, or other object appears relative to the sky's equator line.

例句

Noa checked the moon's declination before setting up the school telescope.

Noa 在架設學校望遠鏡前,先查看了月球的赤緯。

astronomy: check a body's declination before observing

At midnight, Walid wrote the star's declination beside its chart label.

午夜時,Walid 把那顆恆星的赤緯寫在圖表標籤旁。

pattern: the declination of + celestial body

同義詞
  • celestial latitude

    A near-equivalent in a different coordinate system; not used in exactly the same calculations.

  • sky coordinate

    Much broader; declination is one specific coordinate, not the whole system.

文法句型

the declination of + celestial body

check/record/measure + declination

declination + value

用法筆記

Usually given in degrees and commonly paired with right ascension when astronomers state an object's position in the sky.

2. A slow movement into a worse state after a period when something was stronger, h

2.名詞C2
釋義

衰退

由較好狀態逐步變差

A slow movement into a worse state after a period when something was stronger, healthier, or of better quality.

例句

Historians link the empire's declination to years of costly war.

歷史學家把這個帝國的衰退歸因於多年戰事。

formal writing about long-term worsening

Residents feared a further declination in public safety downtown.

居民擔心市中心的公共安全會進一步衰退。

同義詞
  • decline

    Far more common in everyday English and less formal in tone.

  • deterioration

    Focuses more directly on damage or worsening condition.

  • downturn

    Usually used for business or economic activity rather than broad historical weakening.

反義詞
  • improvement

    A move to a better condition or standard.

  • recovery

    A return to strength or health after weakness.

文法句型

the declination of + institution/condition

declination in + quality/standards

用法筆記

Most often seen in formal discussion of standards, health, institutions, or long historical change. In everyday English, decline is much more usual.

3. A part of something that slopes or bends downward instead of staying level or st

3.名詞C2
釋義

下傾

物體向下斜去的角度或彎勢

A part of something that slopes or bends downward instead of staying level or straight.

例句

The road's sudden declination made cyclists brake near the bridge.

道路突然下傾,讓單車騎士在橋邊趕緊煞車。

physical surface with a downward lean

Felix noticed a slight declination of the shelf after the storm.

暴風雨過後,Felix 注意到那個架子有些微下傾。

pattern: declination in + object

同義詞
  • slope

    The everyday word for an angled surface; less technical than declination.

  • tilt

    Often suggests that something has been moved or pushed off level.

  • dip

    Usually names a short downward movement or low point rather than a fixed angle.

反義詞
  • level

    A flat position with no downward angle.

  • rise

    An upward movement or slope instead of a downward one.

文法句型

a/the + declination

declination of + surface/object

slight/sudden + declination

用法筆記

Used for a physical line, surface, or object that turns downward. It is more technical and much less common than slope or tilt.

4. A formal or courteous statement that someone will not accept an invitation, offe

4.名詞C2
釋義

辭謝;婉拒

正式或客氣地回絕邀請等

A formal or courteous statement that someone will not accept an invitation, offer, request, or honour.

例句

Gabriela emailed her declination to the embassy before the dinner.

Gabriela 在晚宴前,用電子郵件把辭謝回覆給使館。

formal reply to an invitation

Please return your acceptance or declination before Friday afternoon.

請在星期五下午前回覆你是接受還是婉拒。

paired formula: acceptance or declination

同義詞
  • refusal

    Broader and much more common in everyday English.

  • rejection

    Can sound firmer and less polite, especially when a person or proposal is judged unsuitable.

  • regrets

    Often used in invitations to mean that someone cannot attend, with a softer and more polite tone.

反義詞
  • acceptance

    A statement that someone agrees to receive or attend something.

  • consent

    Formal agreement, especially when permission is involved.

文法句型

a/the + declination

declination of + invitation/request

send/receive + a declination

用法筆記

Common in invitations, minutes, and official correspondence rather than everyday speech. In ordinary conversation, refusal is much more usual.