v. t. [ imp. & p. p. Dissociated; p. pr. & vb. n. Dissociating. ] [ L. dissociatus, p. p. of dissociare to dissociate; dis- + sociare to unite, associate, socius companion. See Social. ] To separate from fellowship or union; to disunite; to disjoin; as, to dissociate the particles of a concrete substance. [ 1913 Webster ]

Before Wyclif's death in 1384, John of Gaunt had openly dissociated himself from the reformer. A. W. Ward. [ 1913 Webster ]

adj. 1. not connected or associated.
Syn. -- unconnected. [ WordNet 1.5 +PJC ]

2. (Chem.) diffusing independently in a fluid; -- said of ions or molecules which may form relatively stable associated structures; as, the products become rapidly dissociated from the active site of the enzyme. Opposite of associated. [ PJC ]

n. [ L. dissociatio: cf. F. dissociation. ] 1. The act of dissociating or disuniting; a state of separation; disunion. [ 1913 Webster ]

It will add infinitely dissociation, distraction, and confusion of these confederate republics. Burke. [ 1913 Webster ]

2. (Chem.) The process by which a compound body breaks up into simpler constituents; -- said particularly of the action of heat on gaseous or volatile substances; as, the dissociation of the sulphur molecules; the dissociation of ammonium chloride into hydrochloric acid and ammonia. [ 1913 Webster ]

a. Tending or leading to dissociation. [ 1913 Webster ]