diel

diel — adjective

  • dielpositive
  • dielercomparative
  • dielestsuperlative

1. relating to a full twenty-four-hour cycle that covers both daytime and nighttime

1.形容詞C2
釋義

relating to a full twenty-four-hour cycle that covers both daytime and nighttime, used especially in biology for patterns of animal or plant behaviour that repeat across the whole day-night span

例句

Femi tracked the diel movements of the reef fish for his thesis.

collocation: diel movements

Aylin measured diel changes in the lake's oxygen levels every two hours.

collocation: diel changes

同義詞
  • circadian

    broader — refers to any roughly 24-hour biological rhythm, not necessarily spanning both day and night

  • daily

    everyday word for something happening each day, without the scientific precision or day-night emphasis of 'diel'

文法句型

diel + noun

用法筆記

Almost always used before a noun (attributive position). Found mainly in biology, ecology, and environmental science writing.

常見錯誤

❌The diel temperature dropped at night.
✅The diel temperature cycle peaked at noon and dropped at night.
💡'diel' describes a pattern across the full day-night cycle, not a single measurement at one time of day.
❌She has a diel routine of morning coffee and evening walks.
✅She has a daily routine of morning coffee and evening walks.
💡'diel' is a technical biology term; for everyday routines use 'daily.'