What is the plural form of the medical term that means disc of connective tissue cartilage between the bones of a joint, for example, in the knee joint?

Menisci

Explanation:

The meniscus is a C-shaped disc composed of the cartilage, a type of connective tissue which is present in the joints of the knee.

Two menisci are present in each knee joints, one present in the inner edge and one in the outer edge and provide a cushion to the knee bones as it can absorb the shock to the bones and strengthen the bones.

Thus, menisci are the plural of the connective tissue that joins the bones.

a fibrocartilage structure found between the bones of some synovial joints; provides padding or smooths movements between the bones; strongly unites the bones together