(physics) the supposed interaction of two separated bodies without any intervening medium. In modern theories all interactions are assumed to require a field of force
- Action current
action current action current n. An electrical current generated in a cell such as a neuron or muscle cell during the action potential.
- Action figure
a toy figure with jointed, movable limbs, representing a character in a cartoon, movie, etc., or a real person or animal, often one known for exciting action or extraordinary powers. Contemporary Examples Braving gale-force winds, heading off the Falklands, or saving lost hikers—the Duke of Cambridge has become an action figure. Prince William’s Dramatic Rescue […]
- Action grant
funds awarded by the federal government on a competitive basis to cities that submit plans for urban development and are able to show that such plans have the cooperation and endorsement of private investors.
- Action line
a telephone line maintained by a newspaper, television station, or other medium to provide the public a ready means of expressing complaints or obtaining information about matters of vital interest.