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occurring combined, as in the minerals strontianite, celestite, etc. It is isolated as a yellowish metal, somewhat malleable but harder than calcium. It is chiefly employed (as in the nitrate) to color pyrotechnic flames red. Symbol Sr. Atomic weight 87.3. A radioactive isotope of strontium produced by certain nuclear…

A white or yellowish crystalline substance, C6H4.(SO2.CO).NH, produced artificially by the oxidation of a sulphamic derivative of toluene. It is the sweetest substance known, having over two hundred times the sweetening power of sugar, and is known in commerce under the name of saccharine. It has acid properties and fo…

A very large whalebone whale of the genus Sibbaldius, having a yellowish belly; especially, S. sulfureus of the North Pacific, and S. borealis of the North Atlantic; -- called also sulphur whale.

alts. [Obs.] (b) A heavy, corrosive, oily liquid, H2SO4, colorless when pure, but usually yellowish or brownish, produced by the combined action of sulphur dioxide, oxygen (from the air), steam, and nitric fumes. It attacks and dissolves many metals and other intractable substances, sets free most acids from their salt…

A hydrous chloride of calcium and magnesium occurring in yellowish masses which rapidly deliquesce upon exposure. It is found in the salt mines at Stassfurt.

n Indian species are O. longicauda, which has the back, scapulars, and upper tail coverts yellowish green, and the under parts white; and the golden-headed tailor bird (O. coronatus), which has the top of the head golden yellow and the back and wings pale olive-green.

A yellowish-brown color, like that of tan.

A compound obtained as a yellowish gray powder by the action of acetyl chloride or acetic anhydride or ordinary tannic acid. It is used as an intestinal astringent, and locally in rhinitis and pharyngitis.

Of a dull yellowish brown color, like things tanned, or persons who are sunburnt; as, tawny Moor or Spaniard; the tawny lion. "A leopard's tawny and spotted hide." Longfellow.

(Tejus teguexin). It becomes three or four feet long, and is blackish above, marked with yellowish spots of various sizes. It feeds upon fruits, insects, reptiles, young birds, and birds' eggs. The closely allied species Tejus rufescens is called red teguexin.

Oxide of tellurium. It occurs sparingly in tufts of white or yellowish crystals.

A hydrocarbon obtained from coal-tar residues, and remarkable for its intense yellowish green fluorescence.

nsisting of a mass of irregular swellings on the stems and leaves of grapevines. They are yellowish green, somewhat tinged with red, and produced by the larva of a small two-winged fly (Lasioptera vitis). -- Tomato sphinx (Zoöl.), the adult or imago of the tomato worm. It closely resembles the tobacco hawk moth. Calle…

A mineral occurring in rhombic prisms, generally yellowish and pellucid, also colorless, and of greenesh, bluish, or brownish shades. It sometimes occurs massive and opaque. It is a fluosilicate of alumina, and is used as a gem.

s gummifer) of Western Asia, and other species of Astragalus. It comes in hard whitish or yellowish flakes or filaments, and is nearly insoluble in water, but slowly swells into a mucilaginous mass, which is used as a substitute for gum arabic in medicine and the arts. Called also gum tragacanth.

ast. It reaches a length of two and a half feet, is dark olive- green with small white or yellowish specks on the sides, and has yellow spines along the back, except on the neck.

e deposit which accompanies scrofula or phthisis. This is composed of a hard, grayish, or yellowish, translucent or opaque matter, which gradually softens, and excites suppuration in its vicinity. It is most frequently found in the lungs, causing consumption. Tubercle bacillus (Med.), a minute vegetable organism (Bacil…

ained as a brownish red substance, which is used as a dye; -- so called from the peculiar yellowish green fluorescence (resembling that of uranium glass) of its solutions. See Fluorescein.

A mineral occurring in yellowish, and ruby-red hexagonal crystals. It consist of lead vanadate with a small proportion of lead chloride.

A yellowish translucent substance, almost odorless and tasteless, obtained as a residue in the purification of crude petroleum, and consisting essentially of a mixture of several of the higher members of the paraffin series. It is used as an unguent, and for various purposes in the arts. See the Note under Petrolatum.…