labrum

noun

la·​brum ˈlā-brəm How to pronounce labrum (audio)
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Mets left-handed starter David Peterson also had his left hip labrum repaired in the fall of 2023, and bounced back to have a career year in 2024. Abbey Mastracco, New York Daily News, 2 Mar. 2025 Other than Bregman, the only remaining free agent infielder projected for more than 2.0 WAR by Fangraphs is Ha-Seong Kim, who will have to start the 2025 season on the injured list following surgery to repair a torn labrum. Daniel R. Epstein, Forbes, 1 Jan. 2025 Lee doesn’t have any lingering pain after tearing his left labrum and undergoing shoulder surgery and currently has no limitations. Justice Delos Santos, The Mercury News, 14 Feb. 2025 But in 2023, Sanders tore his labrum as a junior, and he was forced undergo an extensive surgery. Mike Kaye, Charlotte Observer, 28 Jan. 2025 See All Example Sentences for labrum

Word History

Etymology

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

First Known Use

1578, in the meaning defined at sense 2

Time Traveler
The first known use of labrum was in 1578

Browse Nearby Words

Cite this Entry

“Labrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/labrum. Accessed 25 Mar. 2025.

Kids Definition

labrum

noun
la·​brum ˈlā-brəm How to pronounce labrum (audio)
: the upper mouthpart of an arthropod in front of or above the mandibles

Medical Definition

labrum

noun
la·​brum ˈlā-brəm How to pronounce labrum (audio)
plural labra -brə How to pronounce labrum (audio)
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
Last Updated: - Updated example sentences
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