argon
nounmasculinetécnico/ɐɾˈɡɔ̃/medium
ár·gon
Definition
A chemical element, a noble and inert gas, with symbol Ar and atomic number 18, used in lamps and lasers.
Argon is the third most abundant gas in the Earth's atmosphere.
This fluorescent lamp is filled with argon.
Common collocations
argon gasargon lampargon laser
Etymology
Do inglês 'argon', do grego 'argón', neutro de 'argós' (inativo), por ser um gás inerte.