Русско-англо-русский юридический словарь

Divorce (or the dissolution of marriage) is the termination of a marital union, the canceling and/or reorganizing of the legal duties and responsibilities of marriage, thus dissolving the bonds of matrimony between a married couple under the rule of law of the particular country and/or state. (Wikipedia)

A petition for divorce, sometimes known as a dissolution petition or a petition for dissolution of marriage, is the initial form submitted to a court to begin the divorce process. It is the first official step to pursuing a divorce. In some jurisdictions, it is also known as a complaint. This petition will be filled out by one spouse and served to the other spouse. (FormSwift)