teratoma. [terâ²ÉtÅâ²mÉ] pl. teratomas, teratomata. a tumor composed of different kinds of tissue, none of which normally occurs together or at the site of the tumor. Teratomas are most common in the ovaries or testes.
The pink-colored film or ring frequently seen on showers, tubs, toilets and pet water bowls is typically caused by growth of the airborne bacteria Serratia marcesens. This harmless nuisance organism reacts with standing water and frequently forms during spring and summer months.
Detecting iron bacteria : There are certain indications that your well may have an iron bacteria problem. These are a red, yellow, or orange color to the water; slime on the inner walls of the toilet tank; and a smell that may resemble fuel oil, cucumber or sewage.