canker sore

noun

, Pathology.

1. an ulceration of a mucous membrane, especially of the mouth.

Word History and Origins

Origin of canker sore¹

First recorded in 1905–10

Example Sentences

As humans, we are nothing if not fascinated by our own bodies, whether that’s picking a scab, prodding a canker sore or popping a pimple.

From Los Angeles Times

We hadn’t thought much about this until last night when she mentioned that the canker sore outbreak started while she had COVID-19.

From Seattle Times

Prolonged direct contact with radioactive material can cause skin rashes, hair loss, canker sores, fatigue, and vomiting.

From Seattle Times

Health officials cautioned the public that prolonged direct contact with radioactive material can cause skin rashes, hair loss, canker sores, fatigue, and vomiting.

From Seattle Times

Instead of launching systemic reforms that could help head off moral injury, they’re offering “wellness solutions” such as massages and meditation tips, which can amount to putting a Band-Aid on a canker sore.

From Scientific American