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whitewood
(Encyclopedia) whitewood, common name for numerous unrelated trees having light-colored wood, e.g., the tulip tree (see magnolia), the linden, and the cottonwood (see willow).figwort
(Encyclopedia) CE5 Figwort, Scrophularia lanceolata figwort, common name for some members of the Scrophulariaceae, a family comprising chiefly herbs and small shrubs and distributed widely over…safety valve
(Encyclopedia) safety valve, device attached to a boiler or other vessel for automatically relieving the pressure of steam before it becomes great enough to cause bursting. The common spring-loaded…strangler fig
(Encyclopedia) strangler fig, common name for a number of tropical plant species, most of them are in the family Moraceae (fig family). They include the golden fig, Ficus aurea, of the SE United…sorrel tree
(Encyclopedia) sorrel tree, common name for a variety of plants, including the Australian hibiscus, Hibiscus heterophyllus, of the mallow family. The staggerbush, Lyoma mariana, and the sourwood,…spectrophotometer
(Encyclopedia) spectrophotometer, instrument for measuring and comparing the intensities of common spectral lines in the spectra of two different sources of light. See photometry; spectroscope;…spiderwort
(Encyclopedia) spiderwort, common name for some members of the Commelinaceae, a family of tropical and subtropical succulent herbs found especially in Africa and the Americas. Species of the…spinel
(Encyclopedia) spinel, magnesium aluminum oxide, MgAl2O4, a mineral crystallizing in the isometric system, usually as octahedrons. It occurs as an accessory mineral in basic igneous rocks, in…poltergeist
(Encyclopedia) poltergeistpoltergeistpōlˈtərgīst [key] [Ger.,=knocking ghost], in spiritism, certain phenomena, such as rapping, movement of furniture, and breaking of crockery, for which there is no…tallow
(Encyclopedia) tallow, solid fat extracted from the tissues and fatty deposits of animals, especially from suet (the fat of cattle and sheep). Pure tallow is white, odorless and tasteless; it…Trending
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