neon lamp

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a small gas discharge lamp containing neon gas, sometimes with other noble gases to add colour

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a lamp consisting of a small gas-discharge tube containing neon at low pressure; luminescence is produced by the action of currents at high frequencies that are wrapped a few turns around the tube