1. a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts; [syn: neon, Ne, atomic number 10]
WordNet (r) 3.0 (2006):
atomic number 10
n 1: a colorless odorless gaseous element that give a red glow
in a vacuum tube; one of the six inert gasses; occurs in
the air in small amounts [syn: neon, Ne, atomic number
10]