15-Letter Words Containing: R,R,A,Y

• The use of pharmaceuticals to treat disease

• Any member of the Paramyxoviridae family of negative-sense single-stranded RNA viruses responsible for a number of human and animal diseases.

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

• radiography using X-rays and xerographic (rather than roentgenographic) techniques

• Branch of psychiatry concerned with the prevention of mental illness, especially in the young

• To crystallize again; especially as a means of purification.