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

As Barrows stated, the usual case is for a normal ACL tear to take about a year to truly recover from, but the 49ers' pass catcher tore all three ligaments. —James Brizuela, MSNBC Newsweek, 21 Nov. 2025

Activities like swimming, cycling, and weight lifting help condition joints and ligaments while reducing repetitive strain. —Sarah Jividen, Verywell Health, 21 Nov. 2025

His most recent offseason was injury-plagued, with two months of recovery after spraining his knee ligament during the Lakers' first-round playoff loss to Minnesota followed by a painful bout of sciatica — pain in the nerves running from the buttocks and down the back of the legs. —CBS News, 19 Nov. 2025

Unfortunately, one night while playing a late tennis tournament in college, Ekmark planted her feet wrong and tore her ACL (anterior cruciate ligament), one of the main ligaments in the knee. —Ernestine Siu, CNBC, 17 Nov. 2025

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