a word, sentence, etc. that is added to a speech or piece of writing, especially in order to give extra information. In writing, it is separated from the rest of the text using brackets, commas or dashes.
پرانتز, عبارت حاشیهای, خط توضیحی
2
either of a pair of marks, ( ) placed around extra information in a piece of writing or part of a problem in mathematics