A word, clause, or sentence inserted as an explanation or afterthought into a passage that is grammatically complete without it, usually marked off by brackets, dashes, or commas.
The parenthesis in the paragraph provided extra context for the reader.
A break or interval in a sequence or narrative; a temporary digression or interlude.
Her two years abroad were merely a parenthesis in an otherwise uneventful career.
Either of the two curved marks ( ) used in writing or printing to enclose a word, phrase, or numeral.
Be sure to close the parenthesis after the equation.