Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH3) 2 S O.This colorless liquid is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is miscible in a wide range of organic solvents as well as water.It has a relatively high melting point.he sodium derivative of DMSO formed in this way is referred to as  dimsyl sodium . It is a base, e.g., for the deprotonation of ketones to form sodium enolates, phosphonium salts to form Wittig reagents, and formamidinium salts to form diaminocarbenes. It is also a potent nucleophile.
A snare is a trap for catching birds or small animals. It consists of a loop of wire or rope which pulls tight around the animal. 2. countable noun. If you describe a situation as a snare, you mean that it is a trap from which it is difficult to escape.
The snare drum is constructed of two headsâboth usually made of plasticâalong with a rattle of metal wires on the bottom head called the snares. The wires can also be placed on the top, as in the tarol snare, or both heads as in the case of the Highland snare drum.