13-Letter Words Containing: RY

• Study of animals whose existence has not been proven.

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

• red pigment in red algae

• The scientific study of psychology and motivation in history.

• the flower of a chrysanthemum plant

• any of numerous perennial Old World herbs having showy brightly colored flower heads of the genera Chrysanthemum, Argyranthemum, Dendranthema, Tanacetum; widely cultivated

• the formation of crystals

• attempting to justify or defend in speech or writing

• providing justification

• a large bone marrow cell; regarded as the source of blood platelets