canker sore
Học thuậtThân thiện
Definition
Noun: A small, painful ulcer or sore that forms inside the mouth, typically on the inner cheeks, lips, tongue, or soft palate. It is a type of mouth ulcer characterized by a white or yellowish center with a red border.
Usage
The term "canker sore" is used to describe a common, non-contagious mouth lesion. It is often used in everyday and medical contexts to distinguish this condition from other oral issues like cold sores (which are caused by a virus and appear on the outer lips).
Examples
- I can't eat spicy food because I have a canker sore.
- Stress is a common trigger for getting a canker sore.
- The doctor confirmed it was just a minor canker sore and not something more serious.
Advanced Usage
- Medical Context: In formal medical terminology, a canker sore is often referred to as an "aphthous ulcer" or "aphthous stomatitis." The phrase "canker sore" itself is the common lay term.
- The patient presented with a history of recurrent aphthous ulcers, commonly known as canker sores.
Variants and Related Words
- Aphthous ulcer (n): The formal medical term for a canker sore.
- Mouth ulcer (n): A broader term that can include canker sores.
- Ulceration (n): The process of forming an ulcer, or the ulcer itself. (This is the term used in the provided reference definition).
Synonyms
- Aphthous ulcer
- Mouth ulcer (general)
- Ulcer (in the context of the mouth)
Notes on Meaning
It is critical to distinguish a canker sore (aphthous ulcer) from a cold sore (fever blister). A canker sore occurs inside the mouth and is not contagious. A cold sore is caused by the herpes simplex virus, usually appears on or around the lips, and is highly contagious.
Noun
- an ulceration (especially of the lips or lining of the mouth)