Definitions

1. noun

The curved upper surface of a liquid in a tube, especially the surface of the eye in a peritubular capillary.

“The meniscus of the liquid rose as the temperature increased.”

2. noun

A crescent-shaped cartilage in the knee joint or elsewhere.

“A torn meniscus can cause severe knee pain.”

3. noun

A curved or crescent-shaped piece of material, such as a metal ring or a plastic disc.

“The meniscus of the gear was damaged during the accident.”