PUT v.
To set, as the hands of a clock, to a later hour. -- To put in. (a) To introduce among others; to insert; sometimes, to introduce with difficulty; as, to put in a word while others are discoursing. (b) (Naut.) To conduct into a harbor, as a ship. (c) (Law) To place in due form before a court; to place among the record…
RADIUM n.
anation or exradio, radium A, radium B, radium C, etc. (The emanation is a heavy gas, the later products are solids.) These products are regarded as unstable elements, each with an atomic weight a little lower than its predecessor. It is possible that lead is the stable end product. At the same time the light gas heliu…
REGULAR a.
Same as Isometric. Regular polygon (Geom.), a plane polygon which is both equilateral and equiangular. -- Regular polyhedron (Geom.), a polyhedron whose faces are equal regular polygons. There are five regular polyhedrons, -- the tetrahedron, the hexahedron, or cube, the octahedron, the dodecahedron, and the icosahedr…