os pubis

Từ điển WordNet v3.1 - WordNet Dictionary

noun

one of the three sections of the hipbone;
together these two bones form the front of the pelvis
• Syn:
pubis, pubic bone
• Derivationally related forms:
pubic (for: pubis)
• Hypernyms:
bone, os
• Part Holonyms:
pelvis, pelvic girdle, pelvic arch, hip