DIMINISH v.
he lower. -- Diminished, or Diminishing, scale, a scale of gradation used in finding the different points for drawing the spiral curve of the volute. Gwilt. -- Diminishing rule (Arch.), a board cut with a concave edge, for fixing the entasis and curvature of a shaft. -- Diminishing stile (Arch.), a stile which is na…
DIOPTRICS n.
f the laws of the refraction of light in passing from one medium into another, or through different mediums, as air, water, or glass, and esp. through different lenses; -- distinguished from catoptrics, which refers to reflected light.