trough crack
111Furrow — (Roget s Thesaurus) < N PARAG:Furrow >N GRP: N 1 Sgm: N 1 furrow furrow groove rut sulcus scratch streak striae crack score incision slit Sgm: N 1 chamfer chamfer fluting …
112cleft — I n 1. space, opening, split, gap; scissure, fissure, crevice, crack, rift, chink, cranny; defile, gully, gulch, chasm, crevasse, ravine, flume, gorge, canyon, pass, Brit. Dial. clough; trench, ditch, trough, furrow, fosse. 2. cleavage, division …