Excision
Part of speech: noun
Definition: The deletion of some text during editing. The removal of a tumor, etc., by cutting. 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.
Resection
Part of speech: noun
Definition: The surgical excision of part of a tissueA method of finding one's position by using a map and compass