MILL n.
A pugilistic. [Cant] R. D. Blackmore. Edge mill, Flint mill, etc. See under Edge, Flint, etc. -- Mill bar (Iron Works), a rough bar rolled or drawn directly from a bloom or puddle bar for conversion into merchant iron in the mill. -- Mill cinder, slag from a puddling furnace. -- Mill head, the head of water employed…
PRISM n.
stances which have unequal dispersive powers, as two different kinds of glass, especially flint glass and crown glass, the difference of dispersive power being compensated by giving them different refracting angles, so that, when placed together so as to have opposite relative positions, a ray of light passed through t…