See also: dta English Noun DTA (uncountable) Initialism of destination time of arrival. (insurance) Initialism of decreasing term assurance. (physics, chemistry) Initialism of differential thermal analysis. (taxation) Initialism of double tax agreement. Anagrams .dat, ADT, ATD, D. A. T., D.A.T., DAT, TA'd, TAD, TAd, TDA, Tad, dat, dat., tad Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads