Princeton's WordNet(5.00 / 1 vote)Rate this definition: 1  fauna, zoology(noun) all the animal life in a particular region or period. the fauna of China; the zoology of the Pliocene epoch. 2  zoology, zoological science(noun) the branch of biology that studies animals.
The American Civil War, widely known in the United States as simply the Civil War as well as other sectional names, was a civil war fought from 1861 to 1865 to determine the survival of the Union or independence for the Confederacy.
Best Answer: The American Civil War (1861â1865), also known as the War Between the States (among other names), was a civil war in the United States of America. Eleven Southern slave states declared their secession from the United States and formed the Confederate States of America, also known as the Confederacy..