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Webster 1913 Edition

Polysynthesis

Polˊy-syn′the-sis

,
Noun.
[
Poly-
+
synthesis
.]
1.
The act or process of combining many separate elements into a whole.
2.
(Philol.)
The formation of a word by the combination of several simple words, as in the aboriginal languages of America; agglutination.
Latham.

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