V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

TDD
       Telecommunications Device for Deaf


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

TDD
       Test Driven Development


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

TDD
       Time Division Duplex (mobile-systems)


The Free On-line Dictionary of Computing (30 December 2018):

TDD

   1.  test-driven development.

   2.  Telecommunications Device for the Deaf.