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n. A red crystalline powder, C20H8O5Br4, used in textile dyeing and ink manufacturing and in coloring gasoline.

n. The red sodium or potassium salt of this powder, used in biology to stain cells.

n. A red, acidic dye commonly used in histological stains.

n. A yellow or brownish red dyestuff obtained by the action of bromine on fluoresceïn, and named from the fine rose-red which it imparts to silk. It is also used for making a fine red ink. Its solution is fluorescent.

n. Tetrabromfluoresceïn (C20H8Br4O5), a valuable dye derived from coal-tar products, forming red or yellowish-red crystals.

n. a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures

"The protoplasm is clear, and contains a number of very fine granules, which stain with acid dyes, such as eosin, or with neutral dyes, and are therefore called oxyphil or neutrophil (Fig. 454, P)."

fluorescent dye    fluoresceine    resorcinolphthalein    fluorescein   

methylene    electrocardiogram    micrograph    pmad    metamagnetism    dull-brown    bistre    lacz    cranberry-colored    maroon-colored