PCAT

chemical element with the symbol Ca which is used to make bones and teeth

the main sex hormone in the male

membranous folds in the larynx which vibrate when air passes through

low pH precipitation due to dissolved sulphur dioxide and nitrogen oxides

part of the brainstem

substance which obeys the Boyle's law

an infectious disease or agent (informal)

the process of bringing back undigested food from the stomach

plaque that helps hold adjacent cells together

a substance which exists in a vapor form at room temperature (neither a liquid nor a solid)

generic name for a drug that is used to treat tuberculosis; trade names: Rifadin and Rimactane

tiny branches of air tubes within the lungs

to spew; to be sick; to eject the stomach contents through the mouth; to throw up

to warn; to inform

to ease suffering; to reduce the severity of an illness without curing it