the ancient Roman god of fire and metalworking, identified with the Greek Hephaestus.
Military. a six-barrel, 20mm U.S. Army antiaircraft gun system mounted on an armored personnel carrier and first deployed in 1968.
Astronomy. a hypothetical planet nearest the sun whose existence was erroneously postulated to account for perturbations in Mercury's orbit.

1505–15; < Latin Vulcānus Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
Vulcan1 (ˈvʌlkən)
Greek counterpart: Hephaestus the Roman god of fire and metalworking

Vulcan2 (ˈvʌlkən)
a hypothetical planet once thought to lie within the orbit of Mercury

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

god of fire and metal-work in Roman mythology, 1513, from L. Vulcanus, a word of Etruscan origin. Often with allusions to his lameness and the unfaithfulness of his wife, Venus. As the name of a hypothetical planet between Mercury and the Sun, it is attested from 1870. The Roman feast of Vulcanalia was
on Aug. 23.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Cultural Dictionary

[Greek name Hephaestus]

The Roman and Greek god of fire and metalworking; the blacksmith of the gods. He suffered bodily deformities and lameness. According to some stories, he was married to Venus, the goddess of love and beauty; in other stories, he was married to one of the three Graces. Vulcan was a son of Jupiter.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Computing Dictionary

VULCAN definition

1. A version of JPLDIS ported to CP/M by Wayne Ratliff around 1980. VULCAN evolved into dBASE II.
2. The dBASE-like interpreter and compiler sold by RSPI with their Emerald Bay product. [Same as 1?]
3. An early string manipulation language.
["VULCAN - A String Handling Language with Dynamic Storage Control", E.P. Storm et al, Proc FJCC 37, AFIPS, Fall 1970].
4. A concurrent object-oriented logic programming language implemented as a preprocessor for FCP by Kahn et al at Xerox PARC.
["Vulcan: Logical Concurrent Objects", K. Kahn et al in Research Directions in Object- Oriented Programming, A.B. Shriver et al eds, MIT Press 1987].
The Free On-line Dictionary of Computing, © Denis Howe 2010
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