helium
nounmasculinetécnico/ˈɛlju/low
hé·li·o
Definition
A chemical element that is a gaseous, inert, colorless, and odorless noble gas, with atomic number 2 and symbol He.
Helium is used to fill party balloons.
Helium is the second most abundant element in the universe.
Common collocations
helium gashelium balloonhelium atom
Etymology
Do grego 'hḗlios' (sol).