1. the removal or obliteration of written or printed matter, especially by drawing a line through it: "we can agree on the deletion of the second paragraph"
▪ the removal of data from a computer's memory: "a bug is responsible for the unexplained deletion of emails"
▪ the removal of a product, especially a recording, from the catalog of those available for purchase.
▪ the loss or excision of a section of genetic code, or its product, from a nucleic acid or protein sequence:"deletion of the gene in mice results in a very reduced tail"