caesium
/ˈsiːzi.əm/
caesium noun: the chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.
Noun
caesium (uncountable)
- The chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.
caesium meaning in Hindi, Tamil, Telugu and Punjabi
caesium in Hindi
- a metallic chemical element
- द्युतातु dyutātu
caesium in Tamil
- a metallic chemical element
- சீரிலியம் cīriliyam
caesium in Telugu
- caesium
- సీజియము sījiyamu
caesium in Punjabi
- a metallic chemical element
- ਸੀਜ਼ੀਅਮ sīzīama
More languagesFewer languages
- caesium in Tagalog
- sesyo
- caesium in Arabic
- سِيزِيُوم sīziyūm
- caesium in Malay
- sesium
- caesium in Indonesian
- sesium
- caesium in Persian
- سزیم seziyom
- caesium in Thai
- ซีเซียม sii-sîiam
- caesium in Vietnamese
- xezi, xêzi
Forms of caesium
| alternative US | cesium |
|---|---|
| alternative form (dated) | cæsium |
Origin of caesium
From Latin caesius (“sky-blue”), in reference to the radiation spectra, + -ium.
Words formed from caesium
- caesian
- caeside
- caesium-137
- caesium auride
- cesium auride
- caesium azide
- cesium azide
- caesium cell
- cesium cell
- caesium chloride
- cesium chloride
- caesium clock
- cesium clock
- caesium fluoride
- cesium fluoride
- caesium hydroxide
- cesium hydroxide
- caesium iodide
- cesium iodide
- caesium nitrate
- cesium nitrate
- dicaesium
- eka-caesium
- radiocaesium
- tetracaesium
Phrases with caesium
Questions about caesium
- What does caesium mean?
- Caesium means the chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.
- What is caesium in Hindi?
- Caesium in Hindi is द्युतातु (dyutātu). See Caesium meaning in Hindi.
- What part of speech is caesium?
- Caesium is a noun.
- How do you pronounce caesium?
- Caesium is pronounced /ˈsiːzi.əm/.
Words near caesium in the dictionary
Source and license
Adapted from Wiktionary: caesium (page history and authors); సీజియము (Telugu) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-caesium.wav, LL-Q1860 (eng)-Tesco250-caesium.wav.
Cite this entry: “caesium.” Word.ws, https://word.ws/caesium. Based on Wiktionary, CC BY-SA 4.0.