1. (n.) The act of flexing or bending; a turning or curving; flexion; hence, obsequious bowing or bending.

2. (n.) A turn; a bend; a fold; a curve.

3. (n.) The last joint, or bend, of the wing of a bird.

4. (n.) The 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.

S-curve angle angularity angularness bend bending bow bowing conflexure crease creasing crimp crookedness deflection deflexure diffraction diffusion dispersion distortion dog-ear double doubling duplicature flection flex flounce fold frill gather geanticline geosyncline hairpin turn hookedness inflection lapel lappet meander orthogonality oxbow plica plication plicature ply rectangularity reflection refraction right-angledness right-angularity ruche ruching ruffle scatter skewness sweep torsion tuck turn turning