IPA: /ˈfɪʃərəl/
KK: /ˈfɪʃərəl/
Related to a narrow opening or crack in a surface.
The fissural patterns in the rock indicate geological activity.
Fissural → It is formed from "fissura" (from Latin, meaning a cleft or split) and the suffix "-al" (meaning pertaining to). The word "fissural" refers to something that is related to or characterized by a split or cleft.
Think of a 'cleft' or 'split' ('fissura') to remember that 'fissural' means something related to a split.