helium

BrE /ˈhiːliəm/ AmE /ˈhiːliəm/

noun en → es

1 GAS [noun] B2

a light, colourless gas that is used especially to fill balloons and airships because it is less dense than air

helio (gas)

Collocations balloon filled with helium

  • The balloons are filled with helium.

    Los globos están llenos de helio.

2 SCIENCE [noun] C1

a chemical element that is a gas at room temperature and has the symbol He and atomic number 2

helio (elemento químico)

Collocations atomic number of helium

  • Helium is the second lightest element.

    El helio es el segundo elemento más ligero.