What is the meaning of Ossicle?

A small bone (or bony structure), especially one of the three of the middle ear.

Bone-like joint or plate, especially:

  1. one of numerous small calcareous structures forming the skeleton of certain echinoderms, as the starfishes;
  2. one of the hard articuli or joints of the stem or branches of a crinoid or encrinite;
  3. one of the several small hard chitinous parts or processes of the gastric skeleton of crustaceans, as in the stomach of a lobster or crawfish.

one of numerous small calcareous structures forming the skeleton of certain echinoderms, as the starfishes;

one of the hard articuli or joints of the stem or branches of a crinoid or encrinite;

one of the several small hard chitinous parts or processes of the gastric skeleton of crustaceans, as in the stomach of a lobster or crawfish.

ossicle (small bone)

Source: wiktionary.org