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Webster 1913 Edition
Polysynthetic
Polˊy-syn-thet′ic
(pŏlˊĭ-sĭn-thĕt′ĭk)
, Adj.
[
Poly-
+ synthetic
.] Characterized by polysynthesis; agglutinative.
Polysynthetic twinning
(Min.)
, repeated twinning, like that of the triclinic feldspar, producing fine parallel bands in alternately reversed positions.