D2T en · ADJ Meanings (abbreviation, alt-of, initialism, not-comparable) Initialism of difficult-to-treat. alt of difficult-to-treat
D2T en · NOUN Meanings (abbreviation, alt-of, initialism, uncountable) Initialism of disk-to-tape: a method of data backup where information is copied from a disk (usually the hard disk of a computer) to a magnetic tape. alt of disk-to-tape