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scaphoid Syllabification: scaph·oid
Pronunciation: /ˈskafoid/

Definition of scaphoid in English:


A large carpal bone articulating with the radius below the thumb.
Example sentences
  • The scaphoid bone has an irregular shape, and 80% of the surface is covered by articular cartilage.
  • Historically, the bone scan has been used to look for occult fractures of the scaphoid and other bones.
  • The England captain fractured his right scaphoid, the bone between the thumb and the wrist, in the national team's 2-1 win over South Africa in Durban on Thursday.


Mid 18th century (in the sense 'boat-shaped'): from modern Latin scaphoides, from Greek skaphoeidēs, from skaphos 'boat'.

Definition of scaphoid in:
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