SICKLE

I. noun see: saw Date: before 12th century an agricultural implement consisting of a curved metal blade with a short handle fitted on a tang, the cutting mechanism (as of a reaper, combine, or mower) consisting of a bar with a series of cutting elements, II. adjective Date: 1688 having the form of a ~ blade ; having a curve similar to that of a ~ blade , III. verb (~d; sickling) Date: 1922 transitive verb to mow or reap with a ~, to change (a red blood cell) into a ~ cell, intransitive verb to change into a ~ cell