1. (noun) (anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint

• semilunar cartilage

1. (noun) (anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint

• anatomy
• general anatomy

2. (noun) (optics) a lens that is concave on one side and convex on the other

• optics

3. (noun) (physics) the curved upper surface of a nonturbulent liquid in a vertical tube

• natural philosophy
• physics

1. (noun) (anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint

• cartilage
• gristle

2. (noun) (optics) a lens that is concave on one side and convex on the other

• lens
• lens system
• lense

3. (noun) (physics) the curved upper surface of a nonturbulent liquid in a vertical tube

• surface