Me·nis·cus n.; pl. L. Menisci E. Meniscuses
1. A crescent.
2. Opt. A lens convex on one side and concave on the other.
3. Anat. An interarticular synovial cartilage or membrane; esp., one of the intervertebral synovial disks in some parts of the vertebral column of birds.
Converging meniscus, Diverging meniscus. See Lens.
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meniscus
n : a disk of cartilage that serves as a cushion between the
ends of bones that meet at a point
[also: menisci (pl)]