Definition of: dissociate

(di·sō′shē·āt) v. ·at·ed, ·at·ing v.t.
1. To break the association of; disconnect; separate.
2. To regard as separate in concept or nature.
3. Chem. To resolve by dissociation.
—v.i.
4. To break an association.
5. Chem. To undergo dissociation. [<L dissociatus, pp. of dissociare <dis- apart + sociare join together <socius a companion]
—dis·so′ci·a′tive adjective