meniscus vs cartilage

meniscus and cartilage both are nouns.

Word	Noun	Adjective	Verb	Adverb
meniscus	Yes	No	No	No
cartilage	Yes	No	No	No

As nouns, cartilage is a hypernym of meniscus; that is, cartilage is a word with a broader meaning than meniscus:

meniscus: (anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint
cartilage: tough elastic tissue; mostly converted to bone in adults

Other hypernyms of meniscus include gristle.

meniscus (noun)	cartilage (noun)
(physics) the curved upper surface of a nonturbulent liquid in a vertical tube	tough elastic tissue; mostly converted to bone in adults
(optics) a lens that is concave on one side and convex on the other
(anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint