helium

Syllables: he·li·um/ˈhiː.li.əm/

helium noun: the second-lightest chemical element (symbol He), with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas.

Noun

helium (countable and uncountable, plural heliums)

(uncountable) The second-lightest chemical element (symbol He), with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas.
- It was an enormous balloon filled with helium, that elemental gas forged from hydrogen in the nuclear furnace of the stars.1997, Ian McEwan, Enduring Love, Vintage (1998), page 3
1. (countable) A form or sample of the element.

helium meaning in Hindi, Tamil, Marathi and Urdu

helium in Hindi

chemical element: यानाति yānāti, हिलियम hiliyam

helium in Tamil

chemical element: ஹீலியம் hīliyam, பரிதியம் paritiyam

helium in Urdu

chemical element: ہیلیم hiliyam

More languagesFewer languages

helium in Bengali: হিলিয়াম hiliẏam
helium in Telugu: హీలియము hīliyamu
helium in Malayalam: ഹീലിയം hīliyaṁ
helium in Kannada: ಹೀಲಿಯಮ್ hīliyam
helium in Punjabi: ਹੀਲਿਅਮ hīliama, ہیلیم helīm
helium in Gujarati: હીલિયમ hīliyam
helium in Odia: ହିଲିଯ଼ମ୍, ହିଲିଯ଼ମ, ହିଲିଅମ୍
helium in Sanskrit: हीलियम hīliyama
helium in Sinhala: හීලියම් hīliyam
helium in Nepali: यानाति yānāti
helium in Tagalog: elyo
helium in Arabic: هِيلِيُوم hīliyūm, هِلْيُوم hilyūm
helium in Malay: helium
helium in Indonesian: helium
helium in Persian: هلیم heliyom
helium in Thai: ฮีเลียม hii-lîiam
helium in Vietnamese: heli, hêli
helium in Myanmar: ဟီလီယမ် hiliyam

Examples of helium in a sentence

Helium-2 is unbound, as it is energetically favorable for it to split into two separate protons.
The helium pressurant supplies the energy for the propellant transport from the tanks to the combustion chamber.
Helium balloons float in air, while air-filled balloons don't.

All 21 example sentences with helium

Synonyms of helium

E939 when used as a packaging gas

Forms of helium

plural	heliums

Origin of helium

From New Latin helium, from Ancient Greek ἥλιος (hḗlios, “sun”) (because its presence was first theorised in the Sun's atmosphere) with the suffix + -ium. Probably coined by Norman Lockyer. This suffix is unusual, because it is usually used only for metallic elements. It is likely that Lockyer, being an astronomer, was unaware of the usual chemical conventions.

Words formed from helium

Phrases with helium

Words that rhyme with helium

13 more rhymesFewer rhymes

Questions about helium

What does helium mean?: Helium means the second-lightest chemical element (symbol He), with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas.
What is helium in Hindi?: Helium in Hindi is यानाति (yānāti), हिलियम (hiliyam). See Helium meaning in Hindi.
What part of speech is helium?: Helium is a noun.
How do you pronounce helium?: Helium is pronounced /ˈhiː.li.əm/.
What is the plural of helium?: The plural of helium is heliums.

Words near helium in the dictionary

Adapted from Wiktionary: helium (page history and authors); హీలియము (Telugu) (page history and authors); helium (Odia, IndicTrans2 machine translation) (model and license); यानाति (Nepali) (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: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-helium.wav, LL-Q1860 (eng)-Tesco250-helium.wav.

Cite this entry: “helium.” Word.ws, https://word.ws/helium. Based on Wiktionary, CC BY-SA 4.0.