excision

Noun

1. The removal of some text during editing.

   Synonyms: deletion

   Coordinate Terms: redaction abridgment

2. The removal of something (a tumor or body part) by cutting.

   Synonyms: resection -ectomy

3. The removal of a gene from a section of genetic material.
4. 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.