Flex and Diffraction

noun

• The act of flexing.
  • usage: "he gave his biceps a flex to impress the ladies"

verb

• Contract.
  • usage: "flex a muscle"
• Exhibit the strength of.
  • usage: "The victorious army flexes its invincibility"
• Form a curve.
  • usage: "The stick does not bend"
  • synonyms: bend
• Bend a joint.
  • usage: "flex your wrists"; "bend your knees"
  • synonyms: bend
• Cause (a plastic object) to assume a crooked or angular form.
  • usage: "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar"
  • synonyms: bend, deform, twist, turn

• (v.t.) To bend; as, to flex the arm.
• (n.) Flax.

noun

• When light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands. .

(n.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action of a grating of fine lines or bars.