RADICAL a.
l sign (Math.), the sign sq. root (originally the letter r, the initial of radix, root), placed before any quantity, denoting that its root is to be extracted; thus, sq. roota, or sq. root(a + b). To indicate any other than the square root, a corresponding figure is placed over the sign; thus cube roota, indicates the…
REDUCE v.
To restore to its proper place or condition, as a displaced organ or part; as, to reduce a dislocation, a fracture, or a hernia. Reduced iron (Chem.), metallic iron obtained through deoxidation of an oxide of iron by exposure to a current of hydrogen or other reducing agent. When hydrogen is used the product is called…