ADSORB
| Date | Clue |
|---|---|
| 2019-07-19 | Gather on the surface, chemically |
| 2013-04-04 | Gather on a surface, in chemistry |
| 2007-07-08 | Gather in a condensed layer |
| 2006-03-25 | Act on like a carbon filter |
| 1999-08-20 | Gather in a thin layer of molecules |
| 1997-06-13 | Gather on the surface, chemically |