Decompose \De`com*pose"\, v. t. [imp. & p. p. Decomposed; p. pr. & vb. n. Decomposing.]

[Cf. F. d['e]composer. Cf. Discompose.]

To separate the constituent parts of; to resolve into original elements; to set free from previously existing forms of chemical combination; to bring to dissolution; to rot or decay.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Decomposed \De`com*posed"\, a. (Zo["o]l.) Separated or broken up; -- said of the crest of birds when the feathers are divergent.

Source: Webster's Revised Unabridged Dictionary (1913)