broth

noun

• 1soup consisting of meat or vegetables cooked in stock, sometimes thickened with barley or other cereals:mutton broth
• meat or fish stock: the pig made five pots of broth [count noun]:she made a broth from the bones

• 2 Microbiology a liquid medium containing proteins and other nutrients for the culture of bacteria: in vitro cultures were established in MG3 broth [as modifier]:broth cultures of intestinal tissue
• a liquid mixture for the preservation of tissue.