meniscus

  1. Noun.  A crescent moon, or an object shaped like it. (defdate, from 17th c.) .
  2. Noun.  (context, optics) A lens which is convex on one side and concave on the other, being crescent-shaped in cross-section. (defdate, from 17th c.) .
  3. Noun.  The curved surface of liquids in tubes, whether concave or convex, caused by the surface tension of the liquid. (defdate, from 19th c.) .
  4. Noun.  (anatomy) Either of two parts of the human knee that provide structural integrity to the knee when it undergoes tension and torsion. (defdate, from 19th c.) .

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This entry was last updated on RefTopia from its source on 3/20/2012.