adj.
Pronunciation: ' fi-s ə l, ' fi- ˌ s ī (- ə )l
Function: adjective
Etymology: Latin fissilis, from findere
Date: 1661
1 : capable of being split or divided in the direction of the grain or along natural planes of cleavage < fissile wood> < fissile crystals>
2 : capable of undergoing fission
– fis · sil · i · ty \ fi- ' si-l ə -t ē \ noun