Someone who accedes to some act, now especially a crime; one who contributes as an assistant or instigator to the commission of an offense.
Accompanying as a subordinate; additional; accessory; especially, uniting in, or contributing to, a crime, but not as chief actor. See accessory.
Something which or someone who impels.
A rotating component that accelerates fluid outward from a center of rotation, found in devices such as pumps, water jets, washing machines, and agitated tanks.