SALTPETER; SALTPETRE n.
(distinguished from potassium nitrate, or true salpeter), a white crystalline substance, NaNO3, having a cooling, saline, slightly bitter taste. It is obtained by leaching the soil of the rainless districts of Chili and Peru. It is deliquescent and cannot be used in gunpowder, but is employed in the production of nitr…
TORTOISE n. 4 definitions
rionyx. -- Spotted tortoise. (Zoöl.) A small American fresh-water tortoise (Chelopus, or Nanemys, quttatus) having a blackish carapace on which are scattered round yellow spots. -- Tortoise beetle (Zoöl.), any one of numerous species of small tortoise-shaped beetles. Many of them have a brilliant metallic luster. the…