Meniscus \Me*nis"cus\, n.; pl. L. {Menisci} (-s[imac]), E.
{Meniscuses}. [NL., from Gr. mhni`skos, dim. of mh`nh the
moon.]
1. A crescent.
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2. (Opt.) A lens convex on one side and concave on the other.
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3. (Anat.) An interarticular synovial cartilage or membrane;
esp., one of the intervertebral synovial disks in some
parts of the vertebral column of birds.
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{Converging meniscus}, {Diverging meniscus}. See {Lens}.
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