11-Letter Words Containing: A,H,R,S,T,U

• shaking and vibration at the surface of the earth resulting from underground movement along a fault plane or from volcanic activity

• a disturbance that is extremely disruptive

• producing or possessing or resembling rhizomes

• an authority who authorizes (people or actions)

• any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs

• unfit for a voyage

• Either of two New World warblers, Parkesia motacilla (the Louisiana waterthrush) and Parkesia noveboracensis (the Northern waterthrush).

• Any of various plants in the family Asteraceae, including most species of Chrysothamnus and some Ericameria.

• a man in charge of children in an institution