[ pee-weyv ]
/ ˈpi ˌweɪv /
a longitudinal earthquake wave that travels through the interior of the earth and is usually the first conspicuous wave to be recorded by a seismograph.
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What does “barren” mean?
Also called pri·ma·ry wave [prahy-mer-ee weyv prahy-muh-ree], /ˈpraɪ mɛr i ˌweɪv ˈpraɪ mə ri/, .
Origin of P wave
First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Medical definitions for P wave
A deflection in an electrocardiogram indicating depolarization of the atria.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for P wave
See primary wave.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.