secondary high explosive

secondary high explosive

[′sek·ən‚der·ē ′hī ik′splō·siv]
(materials)
A high explosive which is relatively insensitive to heat and shock and is usually initiated by a primary high explosive; used for boosters and bursting charges.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.