acyclic

IPA/ˌeɪˈsaɪklɪk/
IPA/ˌeɪˈsaɪklɪk/

acyclic — 形容詞

  • acyclicpositive
  • more acycliccomparative
  • most acyclicsuperlative

1. not happening in a regular loop, and not arranged so that a path returns to wher

1.形容詞C1
釋義

非循環的

不形成循環路徑或反覆回返

not happening in a regular loop, and not arranged so that a path returns to where it began

例句

In the diagram, the arrows form an acyclic graph with no route back.

在這張圖裡，箭頭形成一個非循環圖，沒有路徑會繞回原點。

collocation: acyclic graph + no route back

The software checks that the task list stays acyclic before starting the build.

軟體會先檢查工作清單是否保持非循環，再開始建置。

同義詞
  • noncyclic

    almost identical in meaning, but slightly less common in general technical prose

  • linear

    emphasizes movement in one direction, though it is broader and not always a strict technical equivalent

反義詞
  • cyclic

    describes something that repeats in a loop or returns to an earlier point

文法句型

acyclic + graph / model / workflow / dependency

用法筆記

Most often used in technical writing about graphs, systems, or processes. It contrasts with anything that loops back to an earlier point.

常見錯誤

❌The bus timetable is acyclic because it changes every day.
✅The bus timetable is irregular because it changes every day.
💡'acyclic' means there is no loop or return path, not simply that something is hard to predict.

2. used in chemistry to describe a compound whose atoms stay in a chain instead of

2.形容詞C2
釋義

無環的

原子連成鏈狀，不形成環

used in chemistry to describe a compound whose atoms stay in a chain instead of joining to make a ring

例句

This solvent is acyclic, so its carbon chain never closes into a ring.

這種溶劑是無環的，所以它的碳鏈不會閉合成環。

contrast: chain structure vs ring

Arjun compared the acyclic molecule with a ring-shaped one in class.

Arjun 在課堂上比較了無環分子和環狀分子。

同義詞
  • open-chain

    the closest technical equivalent, highlighting that the atoms remain in a chain

  • noncyclic

    a broader technical synonym that also means lacking a ring structure

反義詞
  • cyclic

    describes a compound whose atoms join to form one or more rings

  • ring-shaped

    an explanatory everyday phrase rather than a strict technical label

文法句型

acyclic + compound / molecule / alcohol / structure

用法筆記

Used mainly in chemistry. Writers often contrast it with ring-shaped or cyclic compounds, and 'open-chain' is a close technical paraphrase.

常見錯誤

❌Benzene is an acyclic compound.
✅Hexane is an acyclic compound.
💡Benzene has a closed ring of atoms, so it is cyclic rather than acyclic.