meniscus medical definition

1. A crescent-shaped body.
2. A concavo-convex lens.
3. The curved upper surface of a nonturbulent liquid in a container that is concave if the liquid wets the walls and convex if it does not.
4. A disk of cartilage that acts as a cushion between the ends of bones in a joint.

Related Forms:

• meniscal , me·nisˈcateˌ , me·nisˈcoidˌ , menˌis·coiˈdal adjective