Meniscus
Meniscus , noun
[New Latin, from Greek mhni`skos, dim. of mh`nh the moon.]
1.
A crescent.
2.
(Optics) A lens convex on one side and concave on the other.
3.
(Anatomy) An interarticular synovial cartilage or membrane; esp., one of the intervertebral synovial disks in some parts of the vertebral column of birds.
Collocations (1)
Converging meniscus or Diverging meniscus , See Lens.