<p><strong>Noun:</strong></p><ul><li>Chemistry: a chemically inert gaseous element occurring in small amounts in the earth's atmosphere, used chiefly in a type of electrical lamp.<ul><li>Symbol: Ne</li><li>Atomic number: 10</li><li>Density: 0.9002 grams/liter at 0°C and 760 millimeters pressure.</li></ul></li><li>Neon lamp: a sign or advertising sign formed from neon lamps.</li></ul><p><strong>Adjective:</strong></p><ul><li>using or containing the gas neon.</li><li>made of or formed by a neon lamp or lamps: a neon sign.</li><li>of, relating to, or characteristic of a tawdry urban district or of gaudy nighttime entertainment.</li></ul><p><strong>End of Response</strong></p>