fissure
Concise Oxford English Dictionary © 2008 Oxford University Press:
fissure /ˈfɪʃə/
▶noun
- 1 a long, narrow crack.
- 2 a state of division or disagreement.
– origin ME: from OFr., or from L. fissura, from fiss-, findere ‘to split’.
'fissure' also found in these Oxford entries:

