portal hypertension: increase in blood pressure in the veins of the portal system caused by obstruction in the liver (often associated with alcoholic cirrhosis), causing enlargement of the spleen and collateral veins
malignant hypertension: severe hypertension that runs a rapid course and damages the inner linings of the blood vessels and the heart and spleen and kidneys and brain
tyrocidine: a basic polypeptide antibiotic derived from a soil bacterium; a major component of tyrothricin