Help Wordnik hunt for a million missing words by backing our Kickstarter!


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A mercury-vapor lamp enclosed by an envelope made from quartz rather than glass.

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

  • n. a mercury-vapor lamp that is enclosed in a quartz container instead of a glass container


Sorry, no etymologies found.


Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.