13-Letter Words Containing: A,E,E,O,P,R,T

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

• a polyhedron whose faces are trapeziums

• without prior preparation

• (used of military forces) designed for military operations abroad

• green plant having a vascular system: ferns, gymnosperms, angiosperms

• Any plant, typically living in deserts, that obtains its water from long taproots that reach the water table