A chemical formula that indicates the simplest numerical ratio of the elements within a molecule, without demonstrating the molecule's chemical bonds or structure. For example, the empirical formula for water is H2O. Synonym: molecular formula.
Pelvic inflammatory disease (PID) is an infection caused by bacteria. When bacteria from the vagina or cervix travel to your womb, fallopian tubes, or ovaries they can cause an infection. Most of the time, PID is caused by bacteria from chlamydia and gonorrhea. These are sexually transmitted infections (STIs). Having unprotected sex with someone who has an STI can cause PID.
Mycobacterium. the only genus in the family Mycobacteriaceae of bacteria; slender acid-fast rods which may be straight or slightly curved. They may produce filaments or cocci. The most serious disease caused by members of this genus is tuberculosis.M. fortuitum, M. chelonea, M. marinum are listed as causes of piscine tuberculosis.ycobacterium leprae, a species of bacteria that causes leprosy. It has not yet been cultivated in vitro. Organisms are isolated from suspect lesions as acid-fast bacilli, typically in intracellular clumps or in groups of bacilli side by side.