SCREW n.
inuous spiral groove, between one turn and the next, -- used chiefly for producing, when revolved, motion or pressure in the direction of its axis, by the sliding of the threads of the cylinder in the grooves between the threads of the perforation adapted to it, the former being distinguished as the external, or male s…
SOLAR a.
em (Astron.), the sun, with the group of celestial bodies which, held by its attraction, revolve round it. The system comprises the major planets, with their satellites; the minor planets, or asteroids, and the comets; also, the meteorids, the matter that furnishes the zodiacal light, and the rings of Saturn. The satel…
SPIN v. 2 definitions
or buckling it by pressing against it with a smooth hand tool or roller while the metal revolves, as in a lathe. To spin a yarn (Naut.), to tell a story, esp. a long or fabulous tale. -- To spin hay (Mil.), to twist it into ropes for convenient carriage on an expedition. -- To spin street yarn, to gad about gossipin…
SUN n.
nstitutes day, and its absence night; the central body round which the earth and planets revolve, by which they are held in their orbits, and from which they receive light and heat. Its mean distance from the earth is about 92,500,000 miles, and its diameter about 860,000.