Definition: a long narrow crack or opening
Part of Speech: Noun
Synonym(s): crevice, crack
1. Scientists believe the fissure, or crack, will cause the iceberg to split into two pieces.
2. If you want to prevent bacteria from entering the skin fissure, you should cover the wound with a bandage.
3. Our concrete grass is cracked in places, and grass is growing out of the largest fissure.