ligament

noun

lig·​a·​ment ˈli-gə-mənt 

1

: a tough fibrous band of tissue connecting the articular extremities of bones or supporting an organ in place

2

: a connecting or unifying bond

… the law of nations, the great ligament of mankind.

—Edmund Burke

ligamentous

ˌli-gə-ˈmen-təs 

adjective

Examples of ligament in a Sentence

He sprained ligaments in his knee.

Recent Examples on the Web

While traditional facelifts merely tighten the skin in a superficial manner, deep-plane procedures can now reorganize the underlying structure of the face, repositioning muscles, fat pads, and ligaments in a labile system of roving features. —Patrick R. Crowley, Artforum, 1 Mar. 2026

López's procedure on Wednesday did not require a full ligament reconstruction, Paparesta said, putting him on track to be fully ready for the 2027 season. —CBS News, 26 Feb. 2026

The 27-year-old, who suffered a tear to his medial knee ligaments in December, was able to start in Saturday’s 0-0 draw at West Ham. —Greg O'Keeffe, New York Times, 23 Feb. 2026

During Miami’s game against the Jets, Hill suffered a dislocated knee and tore multiple ligaments, including the anterior cruciate ligament (ACL). —Pete Grathoff, Kansas City Star, 19 Feb. 2026

Word History

Etymology

Middle English, from Medieval Latin & Latin; Medieval Latin ligamentum, from Latin, band, tie, from ligare

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing ligament

• anterior cruciate ligament
• cruciate ligament
• medial collateral ligament
• posterior cruciate ligament
• suspensory ligament
• ulnar collateral ligament
• ulnar collateral ligament reconstruction

Kids Definition

ligament

noun

lig·​a·​ment ˈlig-ə-mənt 

: a tough band of tissue that holds bones together or keeps an organ in place in the body

Etymology

Middle English ligament "connecting tissue, ligament," derived from Latin ligamentum "band, something used for tying," from ligare "to bind, tie" — related to ally

Medical Definition

ligament

noun

lig·​a·​ment ˈlig-ə-mənt 

1

: a tough band of tissue that serves to connect the articular extremities of bones or to support or retain an organ in place and is usually composed of coarse bundles of dense white fibrous tissue parallel or closely interlaced, pliant, and flexible, but not extensible

2

: any of various folds or bands of pleura, peritoneum, or mesentery connecting parts or organs