The amount that a piece in a battery is traversed toward or away from a given piece (usually the base piece) to vary the width of the sheaf.

(historical) A system proposed by U.S. President Ronald Reagan on March 23, 1983, to use ground-based and space-based systems to protect the United States from attack by strategic nuclear ballistic missiles.

(law) A plea to the effect that from some formal defect (e.g. misnomer, lack of jurisdiction) the proceedings should be abated.

All the methods and procedures involved in defending against attack by chemical agents.

(physics) the difference between the mass of an atom and the sum of the masses of its individual components in the free state; equivalent to the binding energy

(netball) A player allowed in the centre third, defensive goal third, but not the shooting circle.

(netball) A player allowed in the centre third and the defensive goal third, including the shooting circle.

of, or relating to defeatism

someone who advocates defeatism, or has such an attitude

plural of deficient number