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
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.
Medical Definition of labrum
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