aperiodic

IPA/ˌeɪ.pɪə.riˈɒd.ɪk/
IPA/ˌeɪ.pɪr.iˈɑː.dɪk/

aperiodic — 形容詞

  • aperiodicpositive
  • more aperiodiccomparative
  • most aperiodicsuperlative

1. happening or appearing at times that do not follow a fixed or predictable schedu

1.形容詞C1
釋義

不規則的

沒有固定時間或模式的

happening or appearing at times that do not follow a fixed or predictable schedule, with no regular pattern between events.

例句

The bus ran on an aperiodic schedule, so passengers never knew when it would arrive.

這班公車採不規則的班表運行，因此乘客從不知道何時會到站。

attributive use: aperiodic + noun (schedule)

Amara noticed that her phone notifications followed an aperiodic pattern, arriving at unpredictable times.

Amara 注意到她的手機通知呈現不規則的模式，總是在無法預測的時間出現。

同義詞
  • irregular

    the most common and neutral alternative; works in everyday speech and writing

  • sporadic

    emphasises that events occur occasionally with long gaps between them

  • intermittent

    suggests something that starts and stops repeatedly, sometimes with a vague rhythm

反義詞
  • regular

    happening at fixed and predictable intervals

  • periodic

    recurring at regular intervals in a predictable cycle

文法句型

aperiodic + noun

be + aperiodic

用法筆記

This is a formal term most often used in writing about schedules, patterns, or natural phenomena. In everyday conversation, 'irregular' or 'unpredictable' are more natural choices.

常見錯誤

❌The movie had an aperiodic plot that was hard to follow.
✅The movie had an unpredictable plot that was hard to follow.
💡'aperiodic' is rarely used for creative works; 'unpredictable' or 'non-linear' is more natural.

2. describing a wave, motion, electrical signal, or mechanical vibration that does

2.形容詞C2
釋義

非週期的

物理中不具規律振盪的

describing a wave, motion, electrical signal, or mechanical vibration that does not repeat at regular intervals or follow a fixed oscillatory cycle.

例句

Nikhil built an aperiodic circuit to handle the irregular voltage surges that damaged factory equipment.

Nikhil 打造了一個非週期電路，用來處理損壞工廠設備的不規則電壓突波。

attributive use: aperiodic + noun (circuit, technical)

Through a radio telescope, Yael found an aperiodic signal from a galaxy appearing only once.

Yael 透過無線電望遠鏡，發現一個來自星系、只出現過一次的非週期訊號。

contrast with periodic signals from pulsars

同義詞
  • non-repeating

    more transparent in meaning; common in introductory physics texts

  • non-oscillatory

    specifically describes a system that does not oscillate or vibrate in a cycle

  • transient

    describes a brief burst or change that dies out, rather than continuing in a regular pattern

反義詞
  • periodic

    repeating at regular intervals in a fixed cycle

  • oscillatory

    moving back and forth in a regular, repeating pattern

文法句型

aperiodic + noun (signal, oscillation, motion)

be + aperiodic

用法筆記

This is a technical term used primarily in physics, engineering, and signal processing. In casual speech about everyday sounds or motions, 'irregular' or 'non-repeating' is more appropriate.

常見錯誤

❌The washing machine made an aperiodic noise.
✅The washing machine made an unusual noise.
💡In everyday contexts, 'aperiodic' sounds overly technical and unnatural; use simpler descriptive words instead.