la·​brum | \ ˈlā-brəm How to pronounce labrum (audio) \

Definition of labrum

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 Nelson had missed the previous four months with a torn labrum in his right shoulder. New York Times, 10 Apr. 2022 The first date had long been expected, when guard Tramon Mark, a key member of UH’s deep NCAA Tournament run in 2021, underwent season-ending surgery for a labrum tear. Joseph Duarte, San Antonio Express-News, 25 Mar. 2022 The school announced Thursday an MRI revealed a partial labrum tear in his left shoulder. David Woods, The Indianapolis Star, 19 Nov. 2021 Lawlar, 19, suffered a posterior labrum tear just two games in to his professional career, Arizona farm director Josh Barfield told the Arizona Republic last week. Evan Grant, Dallas News, 4 Sep. 2021 Miller underwent offseason surgery to repair a labrum tear in his left shoulder. Nathan Baird, cleveland, 2 Sep. 2021 Lawlar, who is expected to undergo surgery in about 10 days, was diagnosed with a posterior labrum tear, Barfield said, adding that the injury likely occurred on a dive. Nick Piecoro, The Arizona Republic, 26 Aug. 2021 Dort had his career-best season cut short following a torn labrum that required surgery. Nick Crain, Forbes, 12 Apr. 2022 The good news there is, Broughton is now healthy, a full spring practice participant coming off a torn labrum. Josh Newman, The Salt Lake Tribune, 1 Apr. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'labrum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of labrum

1578, in the meaning defined at sense 2

History and Etymology for labrum

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

Learn More About labrum

Dictionary Entries Near labrum




See More Nearby Entries 

Statistics for labrum

Last Updated

16 May 2022

Cite this Entry

“Labrum.” Dictionary, Merriam-Webster, Accessed 19 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for labrum


la·​brum | \ ˈlā-brəm How to pronounce labrum (audio) \
plural labra\ -​brə How to pronounce labrum (audio) \

Medical Definition of labrum

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


Test Your Vocabulary

Eponyms: Words Named After People

Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!