soliton

noun
sol·i·ton | \ ˈsä-lə-ˌtän \

Definition of soliton 

: a solitary wave (as in a gaseous plasma) that propagates with little loss of energy and retains its shape and speed after colliding with another such wave

First Known Use of soliton

1965, in the meaning defined above

History and Etymology for soliton

solitary + -on entry 2

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The first known use of soliton was in 1965

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