deletion

noun

1. an act or instance of deleting.
2. the state of being deleted.
3. a deleted word, passage, etc.
4. Genetics. a type of chromosomal aberration in which a segment of the chromosome is removed or lost.

noun

1. the act of deleting or fact of being deleted
2. a deleted passage, word, etc, in text
3. the loss or absence of a section of a chromosome

n.

1580s, from Latin deletionem (nominative deletio), noun of action from past participle stem of delere (see delete).

n.

1. Loss, as from mutation, of one or more nucleotides from a chromosome.