Main Entry: de·le·tion

Pronunciation: \di-ˈlē-shən, dē-\

Function: noun

Etymology: Latin deletion-, deletio destruction, from delēre

Date: 1590

1 : the act of deleting
2 a : something deleted b (1) : the absence of a section of genetic material from a gene or chromosome (2) : the mutational process that results in a deletion