sol

Colloid of very small solid particles dispersed in a liquid that retains the physical properties of a liquid. A sol can under certain conditions convert into an apparently solid, jelly-like state known as a gel.

Sol

The old name for the note G (see solmization). It is still used in Latin countries. In tonic sol-fa notation, it is the dominant note in any key represented by the symbol s, pronounced ‘Soh’.