suture. ( 1 in surgery) a thread or wire used to join together a wound. ( 2 in surgery) the seam found after stitching two parts together. 3  an immovable joint between the bones of the skull. ( in plants) the line of fusion between two carpels.
For other uses, see ( ) (disambiguation). A bracket is a tall punctuation mark typically used in matched pairs within text, to set apart or interject other text. The matched pair may be described as opening and closing, or left and right symbols.
Square Bracket. One of the symbols [ and ] used in many different contexts in mathematics. 1. Square brackets are occasionally used in especially complex expressions in place of (or in addition to) parentheses, especially as a group symbol outside an inner set of parentheses, e.g., .