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