Overview

callus


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1 (in botany) A protective tissue, consisting of parenchyma cells, that develops over a cut or damaged plant surface. Callus tissue can also be induced to form in cell cultures by hormone treatment.

2 (in pathology) A thick hard area of skin that commonly forms on the palms of the hands and soles of the feet as a result of continuous pressure or friction.

3 (in physiology) Hard tissue formed round bone ends following a fracture, which is gradually converted to new bone.

Subjects: Biological Sciences — Chemistry.


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