Hvernig á að dæma "helium"

Bæta við eigin framburði þinn af "helium"

Merkingar og skilgreiningar á "helium"

Noun

a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)

Samheiti: