an earthquake wave that travels around the earth's surface and is usually the third conspicuous wave to reach a seismograph.
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Why Are We Calling Everything A “Wave”?
Why have so many waves found their way into our cultural lexicon in recent years? In this article, the first in the column Mincing Metaphors, we unpack this oceanic metaphor to better understand what it means and why it’s proving so useful right now.
Also called long wave.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
See Love wave.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.