Labra: The plural of labrum, a ring of fibrocartilage (fibrous cartilage) around the edge of the articular (joint) surface of a bone. In Latin, "labrum" means "lip." The term is generally used to designate a lip, edge, or brim. From Healthy Resources One Clinical Trial to Long-Term RemissionGood vs Bad Advice for Type 2 DiabetesYour EGFR-Positive NSCLC Treatment Options Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew