Martian definition | Dictionary.com

Mar⋅tian

[mahr-shuh

–adjective

1.	of, pertaining to, or like the planet Mars or its hypothetical inhabitants.

–noun

2.	a supposed inhabitant of the planet Mars: The science fiction novel was about the invasion of Earth by Martians.

Origin:
1350–1400; ME marcien < L Mārti(us) of, belonging to Mars (see March ) + -an

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This

Mar·tian   (mär'shən) Pronunciation Key
adj.   Of or relating to the planet Mars or its hypothetical inhabitants.
n.   A hypothetical inhabitant of the planet Mars, especially as a stock fictional character.

[Middle English marcien, from Latin Mārtius, from Mārs, Mārt-, Mars.]

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Online Etymology Dictionary - Cite This Source - Share This
Martian

c.1386, marcien "of the planet Mars" (originally in reference to astrological influence), from L. Martius "pertaining to the planet Mars," from Mars (gen. Martis). The noun meaning "an inhabitant of the planet Mars" is attested from 1883.

Online Etymology Dictionary, © 2001 Douglas Harper
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WordNet - Cite This Source - Share This

martian
adjective
1.	of or relating to the planet Mars (or its fictional inhabitants)
noun
1.	imaginary people who live on the planet Mars

WordNet® 3.0, © 2006 by Princeton University.
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Free On-line Dictionary of Computing - Cite This Source - Share This

Martian
Packets that turn up unexpectedly on the wrong network because of bogus routing entries. Also a packet which has an altogether bogus (non-registered or ill-formed) internet address, such as the test loopback interface [127.0.0.1]. Such a packet will come back labelled with a source address that is clearly not of this earth. "The domain server is getting lots of packets from Mars. Does that gateway have a martian filter?"
[The Jargon File]

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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Jargon File - Cite This Source - Share This

martian

n. A packet sent on a TCP/IP network with a source address of the test loopback interface [127.0.0.1]. This means that it will come back labeled with a source address that is clearly not of this earth. "The domain server is getting lots of packets from Mars. Does that gateway have a martian filter?" Compare Christmas tree packet, Godzillagram.

Jargon File 4.2.0
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Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Martian

Mar"tian\, a. [L. Martius.] Of or pertaining to Mars, the Roman god of war, or to the planet bearing his name; martial.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Martian

Mar"tian\, n. An inhabitant of the planet Mars. --Du Maurier.