Webster's Revised Unabridged Dictionary · 1913

Decomposite

Decomposite , adjective

[Prefix de- (intens.) + composite.]

1.
Compounded more than once; compounded with things already composite.
2.
(Botany) See Decompound, a., 2.

Decomposite , noun

Anything decompounded.
Decomposites of three metals or more. — Bacon