unknown, 11 strokes, radical 钅, rank #75004, Very Hard
sè(se4) T4
1cesium
2cesium (chemistry)
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March 24, 2026
铯(銫)sè(se4)
铯 (sè) refers to the chemical element cesium, which is a soft, silvery-gold alkali metal with the atomic number 55. It's often used in atomic clocks and has important applications in various scientific fields, especially in chemistry and physics.
Strokes11Radical钅Frequency#75004DifficultyVery Hard
Cultural Note
In China, cesium is significant in the development of precision timekeeping, which is vital for telecommunications and navigation systems. This highlights China's advancements in technology and science.
Memory Tip
Imagine a 'sick' (sè sounds like 'sick') element that is always in a state of flux, just like how cesium reacts in nature. The character 铯 has the metal radical '金' (jīn) indicating it is a metal, combined with '色' (sè) which means color, hinting at its distinct properties.
Meanings of 铯
sè(se4)
1cesium
2cesium (chemistry)
Exercise 1 of 2
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About 铯
铯Simplified
銫Traditional
11Strokes
钅Radical
语素morpheme (morph.)Part of Speech
#—Frequency Rank
Podcast: 铯
Podcast: 铯
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AI Study Notes for 铯
Memory Mnemonic
Imagine a 'sick' (sè sounds like 'sick') element that is always in a state of flux, just like how cesium reacts in nature. The character 铯 has the metal radical '金' (jīn) indicating it is a metal, combined with '色' (sè) which means color, hinting at its distinct properties.
Usage Notes
Be cautious with the tone; 'sè' is pronounced with a falling tone. This word is typically used in scientific contexts, so it may not appear in everyday conversation. Common collocations include '铯钟' (sè zhōng - cesium clock) and '铯盐' (sè yán - cesium salt).
HSK Study Tips
铯 is not included in the HSK vocabulary lists, but it connects to HSK 6 level chemical terms. Students should focus on the pronunciation and contextual usage in scientific texts, as well as related terms like '元素' (yuánsù - element).
Cultural Note
In China, cesium is significant in the development of precision timekeeping, which is vital for telecommunications and navigation systems. This highlights China's advancements in technology and science.
Common Mistakes
Learners often confuse 铯 with similar-sounding words. For example, saying 'sī' instead of 'sè' changes the meaning entirely. Ensure correct tone usage to avoid confusion.
AI-enhanced 2026-03-24
Pronunciation of 铯
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Cultural Notes for 铯
🏮Cultural insight
In China, cesium is significant in the development of precision timekeeping, which is vital for telecommunications and navigation systems. This highlights China's advancements in technology and science.
Word Family of 铯
Words Containing This Character1
铯sècesium (chemistry)銫
Exercise 1 of 1
Compound Meaning
What does 铯 mean?
Frequently Asked Questions about 铯
Cesium is crucial for the development of atomic clocks, which are used for GPS and precise timekeeping.
It is pronounced as 'sè' with a falling tone.
No, it is primarily used in scientific contexts, particularly in chemistry and physics.
