Definition of "polysynthetic"
adjective
comparative more polysynthetic, superlative most polysynthetic
(grammar, of languages) Characterized by a prevalence of relatively long words containing a large number of morphemes. Typically, the morphemes are bound.
Quotations
"No doubt, sir," Summerlee answered. "Like all such tribes, I shall expect to find them of polysynthetic speech and of Mongolian type." "Polysynthetic certainly," said Challenger, indulgently.
1912, Arthur Conan Doyle, The Lost World […], London, New York, N.Y.: Hodder and Stoughton