Types of Bladder Cancer. The main types of bladder cancer are named for the type of cells that become cancerous. The most common is transitional cell carcinoma, which begins in the cells that line the inside of the bladder.Squamous cell carcinoma and adenocarcinoma are much less common.ypes of Bladder Cancer. The main types of bladder cancer are named for the type of cells that become cancerous. The most common is transitional cell carcinoma, which begins in the cells that line the inside of the bladder.
1. chemical compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight. compound. chemical science, chemistry-the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions.
A compound is a substance in which atoms of different elements are chemically held to one another. A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs.A mixture can usually be separated back into its original components, a compound can not.  The difference is that a compound is a chemically combined  'mixture' (well defined, with one set of properties) and a mixture  is not chemically combined (in a non-defined, variable combination  of compounds and/or elements, all with its own properties:  kerosine/gasoline/naphta, moist/dry air).