n.
The surface position directly beneath the center of a nuclear explosion.
hypocentral hy'po·cen'tral (-sĕn'trəl) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
