| A | B |
|---|
| diagram | picture drawn to explain an idea |
| diagnose | to identify a disease |
| diagonal | a straight line through a figure from one corner to another corner |
| diaphanous | transparent, can see through |
| diaphragm | a membrane that separates one thing from another |
| perambulate | to walk through, over or around |
| percolate | to drip through a small opening or to filter a liquid |
| perforate | to make holes in something |
| persistence | continuing stubbornly without giving up; determination |
| pervasive | having the power to be spread or to pass through |
| dia | through, across |
| per | through, across |
