Last Updated
：2025/11/19
helium
IPA(Pronunciation)
Noun
uncountable
countable
Japanese Meaning
ヘリウム：第二に軽い化学元素（原子番号2、原子量4.002602）で、無色、無臭、反応性の低い不活性な貴ガス
（ plural ）
Quizzes for review
(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.
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helium
When filling balloons for the school festival, we discovered that helium escaped faster than we expected.
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When filling balloons for the school festival, we discovered that helium escaped faster than we expected.
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