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Meaning of Vulcan

Vul•can

Pronunciation: (vul'kun), [key]
— n.
  1. the ancient Roman god of fire and metalworking, identified with the Greek Hephaestus.
  2. a six-barrel, 20mm U.S. Army antiaircraft gun system mounted on an armored personnel carrier and first deployed in 1968.
  3. a hypothetical planet nearest the sun whose existence was erroneously postulated to account for perturbations in Mercury's orbit.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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