Definition of jactation
1 : boastful declaration or display one of his familiar jactations of imperfection — George Saintsbury
2 [probably from French, from Latin] : a throwing or tossing of the body; specifically : jactitation
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Origin and Etymology of jactation
Latin jactation-, jactatio, from jactatus (past participle of jactare) + -ion, -io -ion
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