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
Explore Merriam-Webster
Recent Examples of labrum from the Web
-
Cause for concern: Wheaton partially tore the labrum in his right shoulder during the preseason last summer and was never able to get the injury under control.
-
Kate Paulus could have been forgiven for being a little rusty after having not played a competitive tennis match since October due to a torn shoulder labrum.
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.
Origin and Etymology of labrum
New Latin, from Latin, lip, edge — more at lip
Medical Dictionary
labrum
playMedical Definition of labrum
labra
\-brə\ play1: 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: asa: glenoid labrumb: acetabular labrum
Seen and Heard
What made you want to look up labrum? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!