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Definition of: meniscus
(mə·nis′kəs) noun plural ·nis·cus·es or ·nis·ci (-nis′ī)
1. Any crescent-shaped body.
2. Optics A lens convex on one side and concave on the other.
3. Anat. A disklike body of fibro-cartilage found in some joints of the body exposed to concussion.
4. Physics The surface or upper part of a liquid column made convex or concave by capillarity. [<L <Gk. mēniskos crescent, dim. of mēnē the moon]
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