I. ˈrid( ə )lə(r) noun
( -s )
Etymology: riddle (II) + -er
: one that propounds, speaks in, or tries to solve riddles
II. noun
( -s )
Etymology: riddle (IV) + -er
: a worker who sifts with a riddle: as
a. : one who screens cut tobacco to remove coarse pieces
b. : one who cleans metal parts by shaking them in a riddle to remove loose chips