MUTILATE v.
To destroy or remove a material part of, so as to render imperfect; as, to mutilate the orations of Cicero. Among the mutilated poets of antiquity, there is none whose fragments are so beautiful as those of Sappho. Addison. Mutilated gear, Mutilated wheel (Mach.), a gear wheel from a portion of whose periphery the cogs…
NAPHTHA n.
several volatile inflammable liquids obtained by the distillation of certain carbonaceous materials and resembling the naphtha from petroleum; as, Boghead naphtha, from Boghead coal (obtained at Boghead, Scotland); crude naphtha, or light oil, from coal tar; wood naphtha, from wood, etc.
NAPHTHALENE n.
rbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also naphthaline. Naphthalene red (Chem.), a dyestuff obtained from certain diazo der…
NAPIER'S BONES; NAPIER'S RODS n.
A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; -- a contrivance of Baron Napier, the inventor of logarithms, for facilitating the operations of multiplication and division.