1. Plural of acetabulum; cup-shaped cavities in the hip bone that receive the head of the thighbone.
Usage: anatomy; medical
2. In zoology, cup-shaped or disk-shaped sucking organs found on the tentacles of cephalopods or the bodies of parasitic worms.
Usage: zoology; biology

Examples

• The surgeon examined the patient's acetabulums to assess hip joint damage.
• Both acetabulums were properly aligned in the X-ray images.
• The octopus uses its acetabulums to grip and manipulate objects.
• Parasitic flatworms attach to host tissue using their acetabulums.
• Damage to the acetabulums can lead to hip arthritis over time.