Student Dictionary

2 entries found for callus.
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Main Entry: 1cal·lus
Pronunciation: primarystresskal-schwas
Function: noun
Inflected Form(s): plural cal·lus·es
1 : a hard thickened area on skin or bark
2 : a mass of tissue that forms around a break in a bone and is changed into bone in the healing of the break
3 : tissue that forms over an injured plant surface

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