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烯 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
烯xīalkenex, 11 strokes, radical 火, Very Hard
xī(xi1) T1
  1. 1alkene
Listen to the audio pronunciation 3 times to gain XP
March 24, 2026
烯xī(xi1)

The character '烯' (xī) refers to alkenes, which are hydrocarbons that contain at least one carbon-carbon double bond. It is primarily used in chemistry to discuss organic compounds and their reactions. In scientific contexts, particularly in organic chemistry, this term is essential for discussing molecular structures and properties.

Strokes11Radical火Frequency#—DifficultyVery Hard
Cultural Note

In contemporary China, the study of organic chemistry is vital for industries such as petrochemicals and pharmaceuticals. Understanding terms like '烯' is crucial for students pursuing careers in these fields, reflecting the country's emphasis on scientific education.

Memory Tip

Think of '烯' (xī) as formed from the radical for fire (火) and the character for 'rest' (西). Imagine a fiery reaction happening when alkenes are involved in a chemical process, highlighting their reactivity and importance in organic chemistry.

Meanings of 烯

xī(xi1)
1alkene
Exercise 1 of 2

Listen & Choose the Meaning

Choose the correct answer:

About 烯

烯Simplified
11Strokes
火Radical
非语素字non-morpheme character (n-m.)Part of Speech
#—Frequency Rank

Podcast: 烯

JasonAmy

Podcast: 烯

Listen to Jason & Amy break down this word for you

AI Study Notes for 烯

Memory Mnemonic

Think of '烯' (xī) as formed from the radical for fire (火) and the character for 'rest' (西). Imagine a fiery reaction happening when alkenes are involved in a chemical process, highlighting their reactivity and importance in organic chemistry.

Usage Notes

In scientific discussions, '烯' is used exclusively in formal contexts, such as academic papers or lectures. A common mistake is confusing '烯' with '烃' (tīng), which refers to hydrocarbons in general. Ensure you use the correct term depending on whether a double bond is present.

HSK Study Tips

While '烯' is not part of the HSK vocabulary list, learners should focus on related terms in organic chemistry to grasp its usage. It connects with other chemical terms, so understanding the structure of organic compounds can be beneficial.

Cultural Note

In contemporary China, the study of organic chemistry is vital for industries such as petrochemicals and pharmaceuticals. Understanding terms like '烯' is crucial for students pursuing careers in these fields, reflecting the country's emphasis on scientific education.

Common Mistakes

Learners often confuse '烯' (alkene) with '烃' (hydrocarbon). For example, saying '我学习烃' (I study hydrocarbons) when they mean to specify alkenes can lead to ambiguity. Always clarify the type of hydrocarbon being discussed.

AI-enhanced 2026-03-24

Pronunciation of 烯

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Etymology of 烯

Formation Typepictophonetic
六书 ClassificationPhono-semantic (形声字)~80-90% of characters
Explanation

Phonosemantic compound. 火 represents the meaning and 希 represents the sound.

Memory Hint

fire

Semantic (meaning)火
+
Phonetic (sound)希
Learn more about Phono-semantic (形声字) characters
Exercise 1 of 1

Character Formation Type

What type of character formation is 烯?

Decomposition of 烯

IDS Structure⿰火希
烯Full Character
=
火Huo3
left
希xi1
right
Exercise 1 of 2

Identify the Components

Which of these is a component of 烯?

Write 烯

烯

Practice writing 烯 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

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Grammar Patterns of 烯

烯 carries one core meaning. Below you'll find the patterns that show how it combines with other words, plus example sentences pulled directly from native usage.

Exercise 1 of 4

Complete the Sentence

把好苹果放在有孔的聚乙____袋中保存。

Keep good apples in perforated polythene bags.

Example Sentences for 烯 (10)

Listen to all sentences once to receive XP
1
把好苹果放在有孔的聚乙烯袋中保存。

bǎ hǎo píng guǒ fàng zài yǒu kǒng de jù yǐ xī dài zhōng bǎo cún。

Keep good apples in perforated polythene bags.
2
我用水彩比用油画颜料或丙烯酸颜料要少得多。

wǒ yòng shuǐ cǎi bǐ yòng yóu huà yán liào huò bǐng xī suān yán liào yào shǎo dé duō。

I use watercolours much less than I do oils or acrylics.
3
它含50%的羊毛、50%的丙烯酸纤维。

tā hán50% 50% de yáng、50% máo 、50% de bǐng xī suān。

It's 50 per cent wool, 50 per cent acrylic.
4
聚笨乙烯和乙烯基树脂都不适合这种设计.

jù bèn yǐ xī hé yǐ xī jī shù zhī dū bù shì hé zhè zhǒng shè jì.

Neither polystyrenes nor vinyl resins are suitable for this design.
5
此酸的烯醇化几乎象酯一样良好.

cǐ suān de xī chún huà jī hū xiàng zhǐ yī yàng liáng hǎo.

The acid ewolises nearly as well as the ester.
6
聚乙烯醇 的耐辐解可通地苄叉化和苯甲酰化提高.

jù yǐ xī chún de nài fú jiě kě tōng dì biàn chā huà hé běn jiǎ xiān huà tí.

Poly ( vinyl alcohol ) has been protected against radiation by benzalation and benzoylation.
7
在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大.

zài běn huò yǐ suān yǐ zhǐ róng yè zhōng qí shuāi jiǎn sù dù suí jiǎ jī bǐng xī suān jiǎ zhī nóng dù chéng zhí xiàn dì zēng dà.

In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration.
8
某种蟑螂喷射一种催泪性毒气――乙 基丙烯 醛.

mǒu zhǒng zhāng láng pēn shè yī zhǒng cuī lèi xìng dú qì―― ―― yǐ jī bǐng.

A species of cockroach sprays a substance , ethylacrolein, that is a kind of tear gas.
9
丙二烯是甲基乙炔的一种异构体.

bǐng èr xī shì jiǎ jī yǐ quē de yī zhǒng yì gòu tǐ.

Allene is an isomer of methyl acetylene.
10
水 、 丙烯晴和半乳甘露聚糖胶,同碱金属氢氧化物在一起,加入到反应器中.

shuǐ、 、 bǐng xī qíng hé bàn rǔ gān lòu jù táng, jiāo , tóng jiǎn jīn shǔ qīng yǎng huà wù zài, yī qǐ , jiā rù dào fǎn.

Water, acrylonitrile and the galactomannan gum are added to a reactor with an alkali metal hydroxide.

Cultural Notes for 烯

🏮Cultural insight

In contemporary China, the study of organic chemistry is vital for industries such as petrochemicals and pharmaceuticals. Understanding terms like '烯' is crucial for students pursuing careers in these fields, reflecting the country's emphasis on scientific education.

Word Family of 烯

Words Containing This Character19
乙烯ethylene
丙烯酸acrylic acid C3H4O2
聚乙烯polythene
聚丙烯polypropylene
聚氯乙烯polyvinyl chloride (PVC)
烯xīalkene
丙烯propylene C3H6
聚苯乙烯polystyrene
苯乙烯Styrene
氯乙烯chloroethylene
丁二烯butadiene C4H6
烯烃olefine烯烴
丙烯酸酯acrylic ester
白三烯leukotriene (biochemistry)
丙烯腈acrylo-nitrile
丁烯butene or butylene C4H8
丙烯醛acrolein CH2CHCHO
萜烯terpene (chemistry)
莰烯camphene C10H16
Exercise 1 of 4

Compound Meaning

What does 乙烯 mean?

Frequently Asked Questions about 烯

'烯' specifically refers to alkenes, which are hydrocarbons that contain at least one double bond between carbon atoms.