PANTOGRAPH n.
nstrument for copying plans, maps, and other drawings, on the same, or on a reduced or an enlarged, scale. [Written also pantagraph, and incorrectly pentagraph.] Skew pantograph, a kind of pantograph for drawing a copy which is inclined with respect to the original figure; -- also called plagiograph.…
RICKETS n.
ren, and which is characterized by a bulky head, crooked spine and limbs, depressed ribs, enlarged and spongy articular epiphyses, tumid abdomen, and short stature, together with clear and often premature mental faculties. The essential cause of the disease appears to be the nondeposition of earthy salts in the osteoid…
SOLAR a.
ng the beam upon the object; and, thirdly, of a small lens, or magnifier, for throwing an enlarged image of the object at its focus upon a screen in a dark room or in a darkened box. -- Solar month. See under Month. -- Solar oil, a paraffin oil used an illuminant and lubricant. -- Solar phosphori (Physics), certain…
STUB n.
A stub nail; an old horseshoe nail; also, stub iron. Stub end (Mach.), the enlarged end of a connecting rod, to which the strap is fastened. -- Stub iron, iron made from stub nails, or old horseshoe nails, -- used in making gun barrels. -- Stub mortise (Carp.), a mortise passing only partly through the timber in whic…