fissure Meaning, Definition & Usage

  1. noun a long narrow depression in a surface
    crevice; chap; cranny; crack.
  2. noun a long narrow opening
    crevice; cleft; scissure; crack.
  3. noun (anatomy) a long narrow slit or groove that divides an organ into lobes
  4. verb break into fissures or fine cracks

WordNet

Fis"sure noun
Etymology
L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite: cf. F. fissure.
Definitions
  1. A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock.
Fis"sure transitive verb
Definitions
  1. To cleave; to divide; to crack or fracture.

Webster 1913