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Exhibiting or producing two colors, as substances which in the color test may change red litmus to blue and blue litmus to red.

eight isomeric liquid compounds, C5H11OH; ordinarily, a mixture of two of these forming a colorless liquid with a peculiar cough-exciting odor and burning taste, the chief constituent of fusel oil. It is used as a source of amyl compounds, such as amyl acetate, amyl nitrite, etc.

One of a group of metameric hydrocarbons, C5H10, of the ethylene series. The colorless, volatile, mobile liquid commonly called amylene is a mixture of different members of the group.

; as, amylic ether. Amylic alcohol (Chem.), one of the series of alcohols, a transparent, colorless liquid, having a peculiar odor. It is the hydroxide of amyl. -- Amylic fermentation (Chem.), a process of fermentation in starch or sugar in which amylic alcohol is produced. Gregory.

ous organs of the body, produced by the deposit of an albuminous substance, giving a blue color with iodine and sulphuric acid; -- called also waxy or lardaceous degeneration.

A resinoid coloring matter obtained from alkanet root.

ariety of the domestic cat with very long and silky hair, generally of the brownish white color. Called also Angola cat. See Cat. -- Angora goat (Zoöl.), a variety of the domestic goat, reared for its long silky hair, which is highly prized for manufacture.

A mineral of a white a slightly bluish color, usually massive. It is anhydrous sulphate of lime, and differs from gypsum in not containing water (whence the name).

ed as ammonia in which one hydrogen atom has been replaced by the radical phenyl. It is a colorless, oily liquid, originally obtained from indigo by distillation, but now largely manufactured from coal tar or nitrobenzene as a base from which many brilliant dyes are made.

To heat, as glass, tiles, or earthenware, in order to fix the colors laid on them.

The burning of metallic colors into glass, earthenware, etc.

ds of a tree (Bixa orellana) belonging to the tropical regions of America. It is used for coloring cheese, butter, etc. [Written also Anatto, Anatta, Annatto, Annotta, etc.]

Furnished with, or composed of, rings; ringed; surrounded by rings of color.

A narrow circle of some distinct color on a surface or round an organ.

A halo opposite the sun, consisting of a colored ring or rings around the shadow of the spectator's own head, as projected on a cloud or on an opposite fog bank.

The blue coloring matter of certain flowers. Same as Cyanin.

A mineral of the hornblende group, of a yellowish gray or clove brown color. -- An`tho*phyl*lit"ic, a.

Native phosphate of lime, occurring usually in six-sided prisms, color often pale green, transparent or translucent.

A very compact, dark-colored

Roundish pearl-colored specks or flakes in the mouth, on the lips, etc., terminating in white sloughs. They are commonly characteristic of thrush.