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callus is
defined as
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Answer:
Callus: 1. A localized firm thickening of the upper layer of skin as a result of repetitive friction. A callus on the skin of the foot has become thick and hard from rubbing (as a result of repetitive friction). ... Shoes that fit well can keep calluses from forming on the feet.
Answer:
Callus is defined as a group of cells derived from competent source tissue that is cultured under in vitro conditions to form an undifferentiated mass of cells. From: Modern Applications of Plant Biotechnology in Pharmaceutical Sciences
thickening of or a hard thickened area on skin or bark. 2 : a mass of exudate and connective tissue that forms around a break in a bone and is converted into bone in healing. 3 : soft tissue that forms over a wounded or cut plant surface
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