#1 fissure n. [crevice, cranny, crack, chap] a long narrow depression in a surface. wn
#2 fissure v. break into fissures or fine cracks. wn
#3 fissure n. [crack, cleft, crevice, scissure] a long narrow opening. wn
#4 fissure n. (anatomy) a long narrow slit or groove that divides an organ into lobes. wn
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