What is another word for non-restrictive relative?
Pronunciation: [nˈɒnɹɪstɹˈɪktɪv ɹˈɛlətˌɪv] (IPA) 
A non-restrictive relative clause is a type of clause that provides additional information to a sentence, but is not essential to the meaning of the sentence. This type of clause can also be referred to as a nonessential or non-defining clause. Other synonyms for non-restrictive relative clauses include non-restrictive adjectives, parenthetical clauses, and supplementary clauses. These clauses are set off by commas and typically provide background information or add detail to a sentence. Examples of non-restrictive relative clauses include phrases such as "which, who, or that" and can be found in a variety of written and spoken language.
