ds Meaning, Definition & Usage

1. noun a radioactive transuranic element
   darmstadtium; element 110; atomic number 110.
   
2. noun the bureau in the State Department that is responsible for the security of diplomats and embassies overseas
   Bureau of Diplomatic Security.
   
3. noun an honorary degree in science
   ScD; Doctor of Science.
   
4. noun a fat-soluble vitamin that prevents rickets
   calciferol; D; viosterol; cholecalciferol; vitamin D; ergocalciferol.
   
5. noun the cardinal number that is the product of one hundred and five
   five hundred; 500; D.
   
6. noun the 4th letter of the Roman alphabet
   d.
   

WordNet