Pronunciation: (mi-nis'kus),[key] —n., —pl.-nis•ciPronunciation: (-nis'ī, -nis'kī, -kē),[key]-nis•cus•es. 1. a crescent or a crescent-shaped body.
2. the convex or concave upper surface of a column of liquid, the curvature of which is caused by surface tension.
3. Optics.a lens with a crescent-shaped section; a concavo-convex or convexo-concave lens. See diag. under lens. 4. Anat.a disk of cartilage between the articulating ends of the bones in a joint.