Decomposed, broken up; separated, analysed.

That has been analysed (in various senses of the verb); that has undergone analysis.

= untwisted, adj.2

In senses of the verb: Set apart or asunder, disjoined, withdrawn, etc.

Separated into its constituent parts, decomposed.

Subjected to or prepared by means of chemical reduction (reduction, n. 11c); not oxidized, in a relatively low oxidation state. Cf. reduce, v. 17c.

(a) reduced to atoms, decomposed; (b) decayed, ruined; whose health, strength, character, etc. has given way; (c) having ceased to function (cf. to…

Cut off from associates or society; disunited, separated.

Soil Science. Of soil; (cf. degradation, n.1 4e).