1.The act of flexing or bending; a turning or curving; flexion; hence, obsequious bowing or bending. "Will it give place to flexure and low bending?"
2.A turn; a bend; a fold; a curve. "Varying with the flexures of the valley through which it meandered."
3.(Zool.) The last joint, or bend, of the wing of a bird.
4.(Astron.) The small distortion of an astronomical instrument caused by the weight of its parts; the amount to be added or substracted from the observed readings of the instrument to correct them for this distortion.
