callusing meaning in Hindi

Callusing should begin within a few weeks, and in two months be firmly knit.
The department of biological sciences at the National University of Singapore explained that patterns formed by callusing are random and depend on the damage caused by the accidents.
The uneven bark surface at the base of the tree trunk was the result of callusing, a natural reaction in which the tree grows new bark over injured areas.
It's hard to know, just yet, whether for each of us this witnessing has caused an erosion or a sedimentation, a stripping away of the skin or a callusing.