13-Letter Words Containing: G,R,A,K,_

• To use a jackhammer.

• To break (something) using a jackhammer.

• To form (something) using a jackhammer.

• To move like a jackhammer.

• To move (something) like a jackhammer.

• To strike (something) repeatedly with force, to pound.

• 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

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

• a productive insight

• making an important discovery

• a penetration of a barrier such as an enemy's defense

• the execution of low priority programs while higher priority programs are not using the processing system