| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024ne•on /ˈniɑn/USA pronunciation n. [uncountable]- Chemistrya colorless, odorless gas used in a type of electrical lamp.
- Chemistrya sign or advertising sign formed from a type of electrical lamp containing neon:His name was in neon everywhere in the theater district.
WordReference Random House Unabridged Dictionary of American English © 2024ne•on (nē′on),USA pronunciation n. - Chemistrya chemically inert gaseous element occurring in small amounts in the earth's atmosphere, used chiefly in a type of electrical lamp. Symbol: Ne;
at. wt.: 20.183;
at. no.: 10;
density: 0.9002 g/l at 0°C and 760 mm pressure. - ChemistrySee neon lamp.
- Chemistrya sign or advertising sign formed from neon lamps.
adj. - Chemistryusing or containing the gas neon.
- Chemistrymade of or formed by a neon lamp or lamps:a neon sign.
- of, pertaining to, or characteristic of a tawdry urban district or of gaudy nighttime entertainment.
- Greek néon new, recent (neuter of néos); see -on1
- Neo-Latin
- 1895–1900
Collins Concise English Dictionary © HarperCollins Publishers:: neon /ˈniːɒn/ n - a colourless odourless rare gaseous element, an inert gas occurring in trace amounts in the atmosphere: used in illuminated signs and lights. Symbol: Ne; atomic no: 10; atomic wt: 20.1797; valency: 0; density: 0.899 90 kg/m³; melting pt: –248.59°C; boiling pt: –246.08°C
- (modifier) of or illuminated by neon or neon lamps: neon sign
Etymology: 19th Century: via New Latin from Greek neon new |