labrum

noun

la·​brum ˈlā-brəm 

1

: an upper or anterior mouthpart of an arthropod consisting of a single median piece in front of or above the mandibles

2

: a ring of fibrous cartilage forming the margin of the shallow cavity of the upper part of the scapula by which the humerus articulates with the shoulder girdle

Examples of labrum in a Sentence

Recent Examples on the Web

The 29-year-old underwent season-ending surgery in September due to a small tear in his right shoulder labrum and finished this past season as a below-average hitter (96 OPS+), though his defense (four outs above average) remained excellent. —Justice Delos Santos, The Mercury News, 31 Oct. 2024

That timetable would likely give O’Malley enough time to recover from surgery to repair a torn labrum. —Brian Mazique, Forbes, 19 Oct. 2024

Garza suffered a torn labrum and struggled pitching through the injury for the remainder of the season. —Daniel Libit, Sportico.com, 3 Sep. 2019

Update — 4pm ET O’Malley spoke to popular streamer Adin Ross on Tuesday and told him he was set to have surgery on a torn labrum on Oct. 3, which partially explains the extended absence from the Octagon. —Brian Mazique, Forbes, 17 Sep. 2024

Word History

Etymology

New Latin, from Latin, lip, edge — more at lip

First Known Use

1578, in the meaning defined at sense 2

Kids Definition

labrum

noun

la·​brum ˈlā-brəm 

: the upper mouthpart of an arthropod in front of or above the mandibles

Medical Definition

labrum

noun

la·​brum ˈlā-brəm 

plural labra -brə 

1

: an upper or anterior mouthpart of an arthropod consisting of a single median piece in front of or above the mandibles

2

: a fibrous ring of cartilage attached to the rim of a joint: as

a

: glenoid labrum

b

: acetabular labrum