Pronunciation: (är'su-nl, ärs'nul), [key]
1. a place of storage or a magazine containing arms and military equipment for land or naval service.
2. a government establishment where military equipment or munitions are manufactured.
3. a collection or supply of weapons or munitions.
4. a collection or supply of anything; store: He came to the meeting with an impressive arsenal of new research data.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.