rubidium
/ˌɹuːˈbɪd.i.əm/
rubidium noun: the chemical element (symbol Rb) with an atomic number of 37. It is a soft, highly reactive alkali metal.

Noun
rubidium (countable and uncountable, plural rubidiums)
- The chemical element (symbol Rb) with an atomic number of 37. It is a soft, highly reactive alkali metal.
- A single atom of this element.
rubidium meaning in Hindi, Tamil, Telugu and Tagalog
rubidium in Hindi
- element with atomic number 37
- दीपातु dīpātu
rubidium in Tamil
- element with atomic number 37
- அர்மிமம் armimam
rubidium in Telugu
- rubidium
- రుబీడియము rubīḍiyamu
rubidium in Tagalog
- element with atomic number 37
- rubidyo
More languagesFewer languages
- rubidium in Arabic
- رُوبِيدِيُوم rūbīdiyūm
- rubidium in Malay
- rubidium
- rubidium in Thai
- รูบิเดียม ruu-bì-dîiam
- rubidium in Vietnamese
- rubiđi
Forms of rubidium
| plural | rubidiums |
|---|
Origin of rubidium
A New Latin word derived by German chemist R. W. Bunsen in 1861, from Latin rūbidus (“red”) because its spectrum has two red lines.
Words formed from rubidium
- dirubidium
- iodrubidium
- monorubidium
- organorubidium
- radiorubidium
- rubidide
- rubidium auride
- rubidium chloride
- rubidium hydroxide
- rubidium nitrate
- rubidium oxide
- rubidium-strontium
- trirubidium
Phrases with rubidium
Questions about rubidium
- What does rubidium mean?
- Rubidium means the chemical element (symbol Rb) with an atomic number of 37. It is a soft, highly reactive alkali metal.
- What is rubidium in Hindi?
- Rubidium in Hindi is दीपातु (dīpātu). See Rubidium meaning in Hindi.
- What part of speech is rubidium?
- Rubidium is a noun.
- How do you pronounce rubidium?
- Rubidium is pronounced /ˌɹuːˈbɪd.i.əm/ (UK).
- What is the plural of rubidium?
- The plural of rubidium is rubidiums.
Words near rubidium in the dictionary
Source and license
Adapted from Wiktionary: rubidium (page history and authors); రుబీడియము (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)-Vealhurl-rubidium.wav, LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-rubidium.wav.
Cite this entry: “rubidium.” Word.ws, https://word.ws/rubidium. Based on Wiktionary, CC BY-SA 4.0.
