15-Letter Words Containing: A,A,C,H,P,R,T

• The use of pharmaceuticals to treat disease

• The fused head and thorax of spiders and crustaceans

• extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds

• in a typographic way

• of or relating to chromatography

• the branch of science that studies the formation and structure of crystals