Vis·it·ing, a. & vb. n. from Visit.
 Visiting ant. Zool. See Driver ant, under Driver.
 Visiting book, a book in which a record of visits received, made, and to be made, is kept. --Thackeray.
 Visiting card. See under Card.
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 Driv·er n.
 1. One who, or that which, drives; the person or thing that urges or compels anything else to move onward.
 2. The person who drives beasts or a carriage; a coachman; a charioteer, etc.; hence, also, one who controls the movements of a any vehicle.
 3. An overseer of a gang of slaves or gang of convicts at their work.
 4. Mach. A part that transmits motion to another part by contact with it, or through an intermediate relatively movable part, as a gear which drives another, or a lever which moves another through a link, etc. Specifically:
 (a) The driving wheel of a locomotive. (b) An attachment to a lathe, spindle, or face plate to turn a carrier. (c) A crossbar on a grinding mill spindle to drive the upper stone.
 5. Naut. The after sail in a ship or bark, being a fore-and-aft sail attached to a gaff; a spanker.
 6. An implement used for driving; as: (a) A mallet. (b) A tamping iron. (c) A cooper's hammer for driving on barrel hoops. (d) A wooden-headed golf club with a long shaft, for playing the longest strokes.
 Driver ant Zool., a species of African stinging ant; one of the visiting ants (Anomma arcens); -- so called because they move about in vast armies, and drive away or devour all insects and other small animals.
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 driver ant
      n : tropical nomadic ant that preys mainly on other insects
          [syn: army ant, legionary ant]