meniscus Meaning, Definition & Usage

  1. noun (anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint
    semilunar cartilage.
  2. noun (optics) a lens that is concave on one side and convex on the other
  3. noun (physics) the curved upper surface of a nonturbulent liquid in a vertical tube

WordNet

Me*nis"cus noun
Etymology
NL., from Gr. , dim. of mh`nh the moon.
Wordforms
plural L Menisci E Meniscuses
Definitions
  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.

Webster 1913