D defs.my
Entry 4 senses Webster, 1913

Deflection

/dĭf-lĕk'-shən/ · De·flec·tion · IPA /dəˈflɛkʃən/
01 n. The act of turning aside, or state of being turned aside; a turning from a right line or proper course; a bending, esp. downward; deviation.
  1. 1.
    The act of turning aside, or state of being turned aside; a turning from a right line or proper course; a bending, esp. downward; deviation.
    “The other leads to the same point, through certain deflections.” — Lowth.
  2. 2.
    The deviation of a shot or ball from its true course.(Gunnery)
  3. 3.
    A deviation of the rays of light toward the surface of an opaque body; inflection; diffraction.(Opt.)
  4. 4.
    The bending which a beam or girder undergoes from its own weight or by reason of a load.(Engin.)