Word · Frequency #44853
precipitant
诱因；促发因素
核心释义
Something that causes or hastens an occurrence, especially a factor that triggers a mental or physical condition.
- 1.
导致或加速行为或事件发生的事物；特指(主要心理学)引发心理或生理状态的事物。
Something which causes or hastens the occurrence of an act or event; specifically (chiefly psychology), something which brings about a mental or physiological condition.
- 2.
加入溶液后使溶解物质形成沉淀物的物质。
A substance that, when added to a solution, causes a dissolved substance to form a precipitate.
沉淀剂；导致或加速行为或事件发生的事物；特指(主要心理学)引发心理或生理状态的事物。；加入溶液后使溶解物质形成沉淀物的物质。
用法In use
The addition of silver nitrate acted as a precipitant, forming a white solid.
用法提示：precipitant 用作名词，指引起沉淀的试剂。
In the lab, we used ammonium oxalate as a precipitant to isolate calcium ions.
用法提示：precipitant 指用于沉淀特定离子的化学物质。
Different precipitants can selectively remove specific ions from solution.
用法提示：precipitants 是复数形式，表示多种沉淀剂。
a precipitant for noun
The catalyst acts as a precipitant for the unwanted compound.
该催化剂充当了不想要的化合物的沉淀剂。
the precipitant of noun
相关词与表达Connections
易混词Confusing words
- precipitate
- 沉淀物 · precipitate (沉淀物) 指沉淀出来的固体，而 precipitant (沉淀剂) 指引起沉淀的物质。
- precipitator
- 沉淀器 · precipitator (沉淀器) 指设备，而 precipitant (沉淀剂) 指化学试剂。
词族Word family
- precipitants
- plural
学习提示Learner notes
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页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.