Origin of STDs(exually) t(ransmitted) d(isease)
Origin of STDClassical Latin Sacrae Theologiae Doctor Doctor of Sacred Theology
std - Computer Definition
(Subscriber Trunk Dialing) Long distance dialing outside of the U.S. that does not require operator intervention. STD prefix codes are required and billing is based on call units, which are a fixed amount of money in the currency of that country. For example, one call unit may be charged for establishing the call, and each call unit pays for some amount of time depending on the distance between parties.