Definition of suture

• n. - The act of sewing; also, the line along which two things or parts are sewed together, or are united so as to form a seam, or that which resembles a seam.
• n. - The uniting of the parts of a wound by stitching.
• n. - The stitch by which the parts are united.
• n. - The line of union, or seam, in an immovable articulation, like those between the bones of the skull; also, such an articulation itself; synarthrosis. See Harmonic suture, under Harmonic.
• n. - The line, or seam, formed by the union of two margins in any part of a plant; as, the ventral suture of a legume.
• n. - A line resembling a seam; as, the dorsal suture of a legume, which really corresponds to a midrib.
• n. - The line at which the elytra of a beetle meet and are sometimes confluent.
• n. - A seam, or impressed line, as between the segments of a crustacean, or between the whorls of a univalve shell.