ulcer

/ˈʌlsə(r)/ (bre, ipa) · /ˈʌlsər/ (ame, ipa) · /ˈəl-sər/ (ame, mw)

ulcer — noun

  • ulcersingular
  • ulcersplural

1. a painful raw patch — either on a person's skin or inside an organ such as the s

1.名詞B2
釋義

a painful raw patch — either on a person's skin or inside an organ such as the stomach or mouth — where the surface tissue has worn through and will not heal by itself without treatment.

例句

Selim was diagnosed with a stomach ulcer after months of burning pain.

collocation: stomach ulcer

The nurse cleaned the ulcer on the patient's leg and changed the bandage.

collocation: ulcer on [body part]

同義詞
  • sore

    more general — any painful spot on the body, not necessarily a deep break

  • lesion

    medical term covering any abnormal tissue area, broader than ulcer

文法句型

a/an + ulcer

stomach/mouth + ulcer

用法筆記

Frequently combined with a body part to specify location: 'stomach ulcer', 'mouth ulcer', 'leg ulcer', 'peptic ulcer'. Countable — a person can have one or several.

常見錯誤

❌I have a wound ulcer on my leg.
✅I have an ulcer on my leg.
💡'ulcer' already means the sore itself; 'wound ulcer' is redundant.