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

• 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

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

• The study of the stratigraphic distribution of fossils.

• using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

• the quality of being transferable or exchangeable