ossiculum
/ɒˈsɪkjʊləm/noun
Anatomy and Zoology. An ossicle. Frequently in the names of particular bones with (usually postmodifying) classical, post-classical, or scientific Latin adjectives and nouns.
Origin
Late 16th century; earliest use found in John Banister (1532/3–?1610), surgeon. From classical Latin ossiculum a small bone, in post-classical Latin also the stone of a fruit from ossi- + -culum.