SPECULUM n.
ortions of the secondary quills, and is much more brilliant in the adult male than in the female. Speculum metal, a hard, brittle alloy used for making the reflectors of telescopes and other instruments, usually consisting of copper and tin in various proportions, one of the best being that in which there are 126.4 par…
SPINDLE n.
a turning lathe. -- Spindle shell. (Zoöl.) See Spindle, 7. above. -- Spindle side, the female side in descent; in the female line; opposed to spear side. Ld. Lytton. [R.] "King Lycaon, grandson, by the spindle side, of Oceanus." Lowell. -- Spindle tree (Bot.), any shrub or tree of the genus Eunymus. The wood of E.…
SPRING n.
rs in spring. The hind wings of the male are brown, bordered with deep blue; those of the female are mostly blue. -- Spring bed, a mattress, under bed, or bed bottom, in which springs, as of metal, are employed to give the required elasticity. -- Spring beetle (Zoöl.), a snapping beetle; an elater. -- Spring box, th…