S-wave Definition
ĕswāv
noun
Wave motion in a solid medium in which the particles of the medium oscillate in a direction perpendicular to the direction of travel of the wave: it cannot be transmitted through a fluid.
Webster's New World
Alternative form of S-wave.
Wiktionary
Other Word Forms of S-wave
Noun
Singular:
S-wave
Plural:
s-wavesOrigin of S-wave
S(econdary) wave since it is the second type of wave, after the faster P-waves, to be detected by a seismograph after a seismic event.
From American Heritage Dictionary of the English Language, 5th Edition