deletion
de.le.tion \di-'le--sh*n\ n [L deletion-, deletio destruction, fr. deletus] 1: an act of deleting 2a: something deleted 2b: DEFICIENCY; esp : a large deficiency not including either end of a chromosome
Webster's English Dictionaryde.le.tion \di-'le--sh*n\ n [L deletion-, deletio destruction, fr. deletus] 1: an act of deleting 2a: something deleted 2b: DEFICIENCY; esp : a large deficiency not including either end of a chromosome