Pronunciation

change

Singular
fissure

Plural
fissures

  1. (countable) A fissure is a crack or opening in a rock.
  2. (countable) (anatomy) A fissure is a long, narrow opening,

Plain form
fissure

Third-person singular
fissures

Past tense
fissured

Past participle
fissured

Present participle
fissuring

  1. If you fissure, you split or crack something to form a fissures.