【医】 spiral cleavage
screw; spin; whirl; come back; lathe; return; revolve; soon
【医】 administer; spin
crack; rend; split
【医】 cleavage; cleft; crena; crenae; diastem; diastema; fissura; fissure
gap; rictus; rima; rimae; schistasis; schisto-; schizo-