zau1 kei4 leot6周期律

Jyutpingzau1 kei4 leot6

Yalejāu kèih leuht

Definition

Periodic law, especially in chemistry, or more generally a law of cycles.

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How it's used

Primarily used in academic, scientific, or formal economic contexts to describe recurring patterns or periodic phenomena. It is rarely used in casual daily conversation where people would prefer simpler terms like 循環 or 週期. When referring to the chemical periodic table, the term 元素週期表 is the standard usage.

Examples

ni1呢go3個ging1經zai3濟zau1周kei4期leot6律hou2好naan4難zuk1捉mo2摸。

This economic cycle is very hard to predict.

nei5你zi1知m4唔zi1知zau1周kei4期leot6律hai6係dim2點joeng2樣wan6運zok3作㗎？

Do you know how the cycle works?

Common phrases

ging1經zai3濟zau1周kei4期leot6律

economic cycle law

Common mistake

Learners often confuse this with 週期, which is the more common and general term for a cycle or period. 周期律 specifically implies a law or rule governing the repetition, making it sound much more technical and formal.