Source : Webster's Revised Unabridged Dictionary (1913)

Charger \Char"ger\, n.
   1. One who, or that which charges.

   2. An instrument for measuring or inserting a charge.

   3. A large dish. [Obs.]

            Give me here John Baptist's head in a charger.
                                                  --Matt. xiv.
                                                  8.

   4. A horse for battle or parade. --Macaulay.

            And furious every charger neighed.    --Campbell.

Source : WordNet®

charger
     n 1: formerly a strong horse ridden into battle
     2: a device for charging or recharging batteries [syn: {battery
        charger}]