fissile Meaning, Definition & Usage

  1. adjective capable of undergoing nuclear fission
    fissionable.
    • a fissionable nucleous
    • fissionable material
  2. adjective capable of being split or cleft or divided in the direction of the grain
    • fissile crystals
    • fissile wood

WordNet

Fis"sile adjective
Etymology
L. fissilis, fr. fissus, p.p. of findere to split. See Fissure.
Definitions
  1. Capable of being split, cleft, or divided in the direction of the grain, like wood, or along natural planes of cleavage, like crystals.
    This crystal is a pellucid, fissile stone. Sir I. Newton.

Webster 1913