the world > action or operation > advantage > usefulness > use (made of things) > instrumentality > [noun] > (a) means > specific material mixed with another substance (2)
A substance, esp. a liquid, which acts as a means for the distribution and application or action of another substance dissolved in or mixed with…
A substance, esp. a liquid, which acts as a means for the distribution and application or action of… More generally: any substance which serves as…