'Ligament' definitions:

Definition of 'ligament'

noun

A sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs

noun

Any connection or unifying bond

From: GCIDE

Ligament \Lig"a*ment\ (l[i^]g"[.a]*ment), n. [L. ligamentum, fr. ligare to bind; cf. f. ligament. Cf. Lien, n., Ligature.]
1. Anything that ties or unites one thing or part to another; a bandage; a bond. --Hawthorne. [1913 Webster]
Interwoven is the love of liberty with every ligament of your hearts. --Washington. [1913 Webster]
2. (Anat.) (a) A tough band or plate of dense, fibrous, connective tissue or fibrocartilage serving to unite bones or form joints. (b) A band of connective tissue, or a membranous fold, which supports or retains an organ in place; as, the gastrophrenic ligament, connecting the diaphragm and stomach. [1913 Webster] Ligamental