sdr

(finance) Initialism of special drawing right. [A monetary unit of account maintained by the International Monetary Fund (IMF), the value of which is based on a basket of major currencies, currently (since 2016) consisting of the US dollar, the euro, the renminbi, the Japanese yen, and the pound sterling.]

(computing, electronics) Initialism of single data rate. [(electronics) A communication signaling technique that transfers data on either the rising edge or the falling edge of the clock signal.]

(telecommunications) Initialism of software defined radio. [(telecommunications) A radio that creates and receives radio signals through software controlled DSPs (digital signal processors) with ADCs (analog-to-digital converters) and DACs (digital-to-analog converters).]

(television, retronym) Initialism of standard dynamic range.

(espionage) Initialism of surveillance detection route.

(social sciences) Initialism of socially desirable responding.

(mathematics) Initialism of system of distinct representatives.

(uncommon) Initialism of Sara Delano Roosevelt.