Molecule
One of the constituent particles of bodies. The molecules of bodies are divided into integrant and constituent, the integrant having properties similar to the mass, and are consequently simple or compound, as the mass is either one or the other. A mass of pure metal consists of integrant particles, each of which has metallic properties similar to those possessed by the whole mass. Similarly, a mass of alloy consists of integrant particles, each of which is a compound of the different metals forming the alloy. When a compound integrant molecule is decomposed we arrive at the constituent molecules. Therefore oxygen and hydrogen are the constituent molecules of an integrant molecule of water.