SPRING n.
other piece of mechanism, in which the spring is contained. -- Spring fly (Zoöl.), a caddice fly; -- so called because it appears in the spring. -- Spring grass (Bot.), a vernal grass. See under Vernal. -- Spring gun, a firearm disharged by a spring, when this is trodden upon or is otherwise moved. -- Spring hook…
SUBINDEX n.
er or symbol to distinguish the symbol; thus, a0, b1, c2, xn, have 0, 1, 2, and n as subindices.
SULPHUR n.
e butterflies of the subfamily Pierinæ; as, the clouded sulphur (Eurymus, or Colias, philodice), which is the common yellow butterfly of the Eastern United States. Amorphous sulphur (Chem.), an elastic variety of sulphur of a resinous appearance, obtained by pouring melted sulphur into water. On standing, it passes bac…