surgical removal of all or part of a limb, etc.
the loss of a limb, etc. through trauma
The removal of something (a tumor or body part) by cutting.
The removal of some text during editing.
The removal of a gene from a section of genetic material.
The fact that, under certain hypotheses, the homology of a space relative to a subspace is unchanged by the identification of a subspace of the latter to a point.