lower jaw

lower jaw — 名詞

1. the U-shaped bone in the face that holds the bottom row of teeth and moves up an

1.名詞B2
釋義

下顎

位於口腔下方的骨骼，可活動開合

the U-shaped bone in the face that holds the bottom row of teeth and moves up and down to open and close the mouth, allowing a person to chew food and speak

例句

The dentist examined the patient's lower jaw for swelling after the root canal treatment.

牙醫在根管治療後檢查病人的下顎是否有腫脹。

collocation: examine the lower jaw

An X-ray of the lower jaw showed a small crack near the back molars.

下顎的X光片顯示後方臼齒附近有一道細小裂縫。

collocation: X-ray of the lower jaw

常見搭配
  • broken lower jaw
  • fractured lower jaw
  • lower jaw surgery
  • lower jaw pain
  • lower jaw bone
  • dislocated lower jaw
同義詞
  • mandible

    the scientific term used in medicine and biology; more formal than lower jaw

  • jawbone

    general everyday term that can refer to either the upper or lower jawbone, though most often used for the lower

  • lower jawbone

    a synonym that emphasises the bone itself rather than the whole structure

反義詞
  • upper jaw

    the bone that holds the top row of teeth and does not move (also called the maxilla)

用法筆記

In formal medical contexts, the term mandible is preferred over lower jaw. It is the only movable bone of the skull, hinged to the temporal bone at the temporomandibular joint.

常見錯誤

The doctor wrapped a bandage around his lower jaw and upper jaw.
The doctor wrapped a bandage around his jaw.
When referring to both the upper and lower parts together, use the general word jaw.