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  • In architecture, a labrum is a large, water-filled vessel or basin with an overhanging lip. In entomology, the labrum is the upper lip of an insect mouth, the lower lip being termed the labium. — “Labrum - Wikipedia, the free encyclopedia”,
  • The glenoidal labrum (glenoid ligament) is a fibrocartilaginous rim attached around the margin of the glenoid cavity in the shoulder blade. The labrum is triangular in section, the base is fixed to the circumference of the cavity, while the free edge is thin and sharp. — “Glenoid labrum - Wikipedia, the free encyclopedia”,
  • The acetabular labrum (glenoidal labrum of the hip joint or cotyloid ligament in older texts) is a ring of cartilage that surrounds the acetabulum (the socket of the hip joint). Its function is to deepen the acetabulum, making it more difficult. — “Acetabular labrum - Wikipedia, the free encyclopedia”,

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