I am currently near the end of Open University module S187: Elements of forensic science. This morning I learnt a completely new word, and a new meaning for a familiar word, in the material.
The familiar word is the noun phase. I'm used to seeing it used in the sense of a period of time in which changes are occurring: "It's just a phase he's going through." Also, two light beams might have the same wavelength but a different phase - we get constructive interference when they are in phase, and destructive interference when they are out of phase.
But in the module, a "solid phase" can also refer to a flat plate made of silica, alumina or paper on which chromotography takes place.
The unfamiliar word is the verb adsorb. At first I thought it was a misprint for "absorb", especially as the noun form is "adsorption". It is explained as meaning, "The ability of a substance to adhere to the surface of a solid."