PCAT Word by meaning

n. air spaces in the skull; pathological cavity containing pus

phr. to keep the penis rigid and upright

n. organic substance found in fruit and vegetables; important for skin

n. generic name for drugs that used to treat peptic ulcers by decreasing the secretion of stomach acid; brand name: Tagamet

n. protein that is produced by cells and catalyzes specific biochemical reactions

n. this is a layer of Schwann cells which covers the nerve axon?

n. the degree of hotness or coldness of a body or environment

adj. having a lower osmotic pressure than another solution

n. something applied from outside

v. adapt to changes in the environment?