1. a period in the history of humankind, following the Stone Age and preceding the Iron Age, during which bronze weapons and implements were used.
2. (l.c.) Class. Myth.the third of the four ages of the human race, marked by war and violence; regarded as inferior to the silver age but superior to the following iron age.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.