Ossicule

Part of speech: noun

Definitions

1. A minuscule bone located in the ear's middle compartment that is essential for the auditory process
2. A tiny bony element situated within the middle ear, facilitating the transmission of sound vibrations
3. A tiny bone found in the middle ear that plays a key role in carrying sound waves from the eardrum to the inner ear

Etymology: "Ossicule" is an older spelling of "ossicle," and both come from the Latin "ossiculum," meaning "little bone." That diminutive is built from "os," the Latin word for "bone," with the "-iculum" ending that Latin used to make things smaller, so the word literally means "a small bone." The same Latin root gave English "osseous," used for anything bony or made of bone. English adopted the word in the late 16th century, when anatomists were describing the tiny bones of the body with increasing precision. The ear's three ossicles, the malleus, incus, and stapes, are the most famous examples, and the word's sense narrowed to fit them, though it also applies to small bones elsewhere in the body.