Definitions
1.nounThe act of bending or flexing; flexion.
2.nounA turn; a bend; a fold; a curve.
3.nounA curve or bend in a tubular organ.
4.nounThe last joint, or bend, of the wing of a bird.
5.nounThe small distortion of an astronomical instrument caused by the weight of its parts; the amount to be added or subtracted from the observed readings of the instrument to correct them for this distortion.