ci·vil·ian (sĭ-vĭl'yən)
[Middle English, civil law judge, from Old French civilien, from civil, civil, from Latin cīvīlis; see civil.]
noun
1. A person following the pursuits of civil life,
especially one who is not an active member of the military or police.
2. A specialist in Roman or civil law.
adjective
Of or relating to civilians or civil life; nonmilitary: civilian clothes; a civilian career.
http://www.ask.com/reference/dictionary/ahdict/24343/civilian
Definition: civilian
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Source: WordNet (r) 1.7
civilian
adj : associated with or performed by civilians as contrasted with
the military; "civilian clothing" "civilian life" [ant:
military]
n : a nonmilitary citizen [ant: serviceman]
Source: Webster's Revised Unabridged Dictionary (1913)
Civilian \Ci*vil"ian\, n. [From Civil]
1. One skilled in the civil law.
Ancient civilians and writers upon government.
--Swift.
2. A student of the civil law at a university or college.
--R. Graves.
3. One whose pursuits are those of civil life, not military
or clerical.
http://dict.die.net/civilian/