A civilian is defined as a person who isn't in the military.(noun)
A child is an example of a civilian.
The definition of civilian is something that is for someone who isn't in the military.(adjective)
Regular everyday clothing worn by most people is an example of civilian clothes.
See civilian in Webster's New World College Dictionary
Origin: ME < OFr civilien < L civilis, civil
See civilian in American Heritage Dictionary 4
Origin: Middle English, civil law judge
Origin: , from Old French civilien
Origin: , from civil, civil
Origin: , from Latin cīvīlis; see Civil.
Learn more about civilian