What is another word for nonrestrictive clause?
Pronunciation: [nˌɒnɹɪstɹˈɪktɪv klˈɔːz] (IPA) 
A nonrestrictive clause is a type of subordinate clause that gives additional information about a noun or pronoun in a sentence. It is often set off by commas and can be removed from the sentence without changing the meaning. Synonyms for nonrestrictive clause include nonessential clause, parenthetical clause, and supplementary clause. Nonessential clause emphasizes that the additional information is not necessary for the understanding of the sentence. Parenthetical clause suggests that the information is a side note or afterthought, similar to how parentheses are used in writing. Supplementary clause implies that the information is supplementary to the main idea of the sentence.
