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canker sore
1 ENTRIES FOUND:
canker sore
(noun)
canker sore
noun
plural
canker sores
canker sore
noun
plural
canker sores
Britannica Dictionary definition of CANKER SORE
[
count
]
US
:
a small painful sore inside the mouth
—
called also
mouth ulcer
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blunt
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having a thick edge or point
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