neon Neomylodon • neonatal · · · Info · Definitions · Synonyms · Characters · · neon · · Text Latin · · Script 4 · · Length Definitions · · · (noun) 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. Synonyms: Ne, atomic number 10. · · Noun Definition 1 Synonyms · · · ne · · Synonym 1 atomic number 10 · · Synonym 2 Characters · · e latin small letter e U+0065 n latin small letter n U+006E o latin small letter o U+006F