RANK n.
soldiers, including also corporals. In a more extended sense, it includes sergeants also, excepting the noncommissioned staff. (b) See under 1st File. -- The ranks, the order or grade of common soldiers; as, to reduce a noncommissioned officer to the ranks. -- To fill the ranks, to supply the whole number, or a compe…
REFRACTION n.
produces two distinct images. The power of double refraction is possessed by all crystals except those of the isometric system. A uniaxial crystal is said to be optically positive (like quartz), or optically negative (like calcite), or to have positive, or negative, double refraction, according as the optic axis is the…