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.
Gram-negative rods Infectious disease Bacilli that don't absorb gram stainâie, are pink; most clinically important GNRs are coliforms: Enterobacteriaceaeâeg, Escherichia, Klebsiella, Proteus, Pseudomonas, Salmonella, Shigella, growth of GNRs usually implies fecal contamination, as in peritonitis due to appendicitis, ruptured diverticulosis, gunshot ...