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Having no lower jaw; hence, fleshless. [R.] "Yellow, chapless skulls." Shak.

A cruciferous plant (Brassica sinapistrum) with yellow flowers; wild mustard. It is troublesome in grain fields. Called also chardock, chardlock, chedlock, and kedlock. Jointed charlock, White charlock, a troublesome weed (Raphanus Raphanistrum) with straw- colored, whitish, or purplish flowers, and jointed pods: wild…

urd into a mold. -- Cheese rennet (Bot.), a plant of the Madder family (Golium verum, or yellow bedstraw), sometimes used to coagulate milk. The roots are used as a substitute for madder. -- Cheese vat, a vat or tub in which the curd is formed and cut or broken, in cheese making.

A native or natives of China, or one of that yellow race with oblique eyelids who live principally in China.

A cutaneous affection characterized by yellow or yellowish brown pigmented spots.

A yellow crystalline substance, C6Cl4.O2, regarded as a derivative of quinone, obtained by the action of chlorine on certain benzene derivatives, as aniline.

One of the elementary substances, commonly isolated as a greenish yellow gas, two and one half times as heavy as air, of an intensely disagreeable suffocating odor, and exceedingly poisonous. It is abundant in nature, the most important compound being common salt. It is powerful oxidizing, bleaching, and disinfecting a…

The yellowish green pigment in the inner segment of the cones of the retina. See Chromophane.

green sickness; an anæmic disease of young women, characterized by a greenish or grayish yellow hue of the skin, weakness, palpitation, etc.

A fluosilicate of magnesia and iron, yellow to red in color, often occurring in granular form in a crystalline limestone.

, Cr2O3, used in enamel painting, and glass staining. (b) A pigment made by mixing chrome yellow with Prussian blue. -- Chrome red, a beautiful red pigment originally prepared from the basic chromate of lead, but now made from red oxide of lead. -- Chrome yellow, a brilliant yellow pigment, PbCrO4, used by painters.…

e free state, but forming well known salts, many of which are colored pigments, as chrome yellow, chrome red, etc. -- Chromic anhydride, a brilliant red crystalline substance, CrO3, regarded as the anhydride of chromic acid. It is one of the most powerful oxidizers known.

A general name for the several coloring matters, red, green, yellow, etc., present in the inner segments in the cones of the retina, held in solution by fats, and slowly decolorized by light; distinct from the photochemical pigments of the rods of the retina.

A yellow substance obtained as a by-product in the manufacture of rosaniline. It dyes silk a fine golden-yellow color.

A bitter, yellow substance forming the essential constituent of Goa powder, and yielding chrysophanic acid proper; hence formerly called also chrysphanic acid.

a white crystalline substance, C18H12, of strong blue fluorescence, but generally colored yellow by impurities.

A mineral, found in crystals, of a yellow to green or brown color, and consisting of aluminia and glucina. It is very hard, and is often used as a gem.

A yellow crystalline substance extracted from crude anthracene.

An artificial, yellow, crystalline dye, C6H5N2.C6H3(NH2)2. Also, one of a group of dyestuffs resembling chrysoïdine proper.

A mineral, composed of silica, magnesia, and iron, of a yellow to green color. It is common in certain volcanic rocks; -- called also olivine and peridot. Sometimes used as a gem. The name was also early used for yellow varieties of tourmaline and topaz.