maxilla

/mækˈsɪlə/ (bre, ipa) · /mækˈsɪlə/ (ame, ipa) · /mak-ˈsi-lə/ (ame, mw)

maxilla — noun

  • maxillasingular
  • maxillaeplural

1. One of the two fused bones that make up the upper jaw in humans and other mammal

1.名詞B2
釋義

One of the two fused bones that make up the upper jaw in humans and other mammals. It holds the upper teeth in position and contributes to the lower rim of both eye sockets, along with the sides and floor of the nasal cavity.

例句

After falling off his bicycle, eight-year-old Jun fractured his maxilla and had to have surgery.

fractured maxilla — common injury context

The CT scan showed that the tumour had spread from the palate into the left maxilla.

medical context: maxilla as anatomical location

同義詞
  • upper jaw

    non-technical term used in everyday language; less precise but more common outside medicine.

  • jawbone

    general term that can refer to either the upper or lower jaw; less specific than 'maxilla'.

反義詞
  • mandible

    the lower jaw bone; the counterpart of the maxilla.

文法句型

the maxilla

a fractured maxilla

用法筆記

In everyday conversation, English speakers usually say 'upper jaw' instead of 'maxilla'. The term 'maxilla' is most common in medical, dental, and anatomical writing.

常見錯誤

❌The dentist said I broke my maxilla bone.
✅The dentist said I broke my maxilla.
💡'maxilla' already names a bone, so 'bone' after it is redundant.