Streptomycin is also occasionally used to treat infections such as brucellosis and endocarditis. As for TB, when treating these infections, streptomycin should be used in combination with another antibiotic to help prevent resistance occuring.
DEFINITION of 'Oil Shale'. A type of sedimentary rock composed chiefly of a combination of silt and clay. Shale may contain kerogen, a type of organic matter that yields oil and gas.
a rock of fissile or laminated structure formed by the consolidation of clay or argillaceous material. Origin of shale. Old English. 1740-1750. 1740-50; origin uncertain; compare obsolete shale to split (said of stone), to shell, derivative of shale shell, husk, Old English scealu shell, husk; see scale2.