(American football) a running play in which a back running in one direction hands the ball to a back running in the opposite direction | a backward somersault |
turning in the opposite direction | an electronic circuit that can assume either of two stable states |
the gears by which the motion of a machine can be reversed | a backless sandal held to the foot by a thong between the big toe and the second toe |
the side of a coin or medal that does not bear the principal design | a decision to reverse an earlier decision |
an unfortunate happening that hinders or impedes; something that is thwarting or frustrating | |
a relation of direct opposition | |