relational database 
noun Computing
A database structured to recognize relations between stored items of information.We currently store XML data in relational databases....
- The integration of XML with relational databases enables storing, indexing, and retrieving semistructured and nonstructured data.
- In traditional relational databases, data is stored in rows and columns which can be too complex.
- frogstool
- frog tadpole
- frog tribe
- frogwoman
- froideur
- frolic
- frolicker
- frolicsome
- frolicsomely
- frolicsomeness
- from
- from above
- from above-stairs
- from a child
- fromage blanc
- fromage frais
- from all angles
- from A to B
- from A to Z
- from bad to worse
- from cover to cover
- from day one
- from day to day (or hour to hour etc.)
- (from) door to door
- from farm to fork (or table)