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Definition of: callosity
(kə·los′ə·tē) noun plural ·ties
1. Physiol. A thickened, hardened portion of the skin, produced by or as by pressure or friction.
2. Biol. A hard or thickened part, as on the legs of horses, on or in a plant, etc.; a callus.
3. Hardness; insensibility.
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