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.
, I have owned a residential cleaning and home management business for 20 years. Lime-Away toilet bowl cleaner (not spray cleaner, which is a different product) is EXCELLENT at getting out really tough stains in toilets. I have been successful cleaning toilets brown with water stains decades old with this product. It may take a few uses, allowing it to sit on the toilet bowl for several minutes at a time, but it will get it clean.