D-s meson

D-s meson

noun Physics.
a positively charged meson having a mass 3852 times that of the electron and a mean lifetime of approximately 4.7 X 10-13 seconds.
Also called D-s particle.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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D-s meson is always a great word to know.
So is cohesive. Does it mean:
of or pertaining to the molecular force within a body or substance acting to unite its parts
to be reflected many times, as sound waves from the walls of a confined space
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