ossiculum

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a small bone;
especially one in the middle ear
• Syn:
ossicle, bonelet
• Derivationally related forms:
bone (for: bonelet), ossicular (for: ossicle)
• Hypernyms:
bone, os
• Hyponyms:
auditory ossicle
• Part Holonyms:
middle ear, tympanic cavity, tympanum