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The Collaborative International Dictionary
Converging meniscus

Meniscus \Me*nis"cus\, n.; pl. L. Menisci (-s[=i]), E. Meniscuses. [NL., from Gr. mhni`skos, dim. of mh`nh the moon.]

  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.