SS.D.
1.
Most Holy Lord: a title of the pope.
Read Also:
- S.S.D.  1. Doctor of Sacred Scripture. 
- Ssdd  SSDD single sided, double density 
- Ssdi  SSDI Social Security Death Index 
- SSE  1. south-southeast. symbol 1. south-southeast Streaming SIMD Extensions SSE south-southeast 
- Sse-2  architecture Intel Corporation’s extention of their SSE floating point SIMD instructions to handle 64-bit floating point numbers. SSE-2 was introduced with the Pentium 4. (2001-12-23) 
