13-Letter Words Containing: C,I,R,R

• To establish a hierarchy.

• To arrange in a hierarchy.

• describe or portray the character or the qualities or peculiarities of

• be characteristic of

• an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)

• describe or portray the character or the qualities or peculiarities of

• be characteristic of

• red pigment in red algae

• the process whereby hydrocarbon molecules of petroleum are broken down into kerosene and gasolene by the addition of hydrogen under high pressure in the presence of a catalyst

• remove carbon from (an engine)