adj.
- Possible to split.
- Physics. Fissionable, especially by neutrons of all energies.
- Geology. Easily split along close parallel planes.
[Latin fissilis, from fissus, split. See fissi-.]
fissility fis·sil'i·ty (fĭ-sĭl'ĭ-tē) n.
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.