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

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

ear the cell wall, and consist of a colorless ground substance saturated with chlorophyll pigments. Under light of varying intensity they exhibit phototactic movements. In animals chloroplasts occur only in certain low forms.

A contractile cell or vesicle containing liquid pigment and capable of changing its form or size, thus causing changes of color in the translucent skin of such animals as possess them. They are highly developed and numerous in the cephalopods.

a) The green oxide of chromium, 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 pigme…

adily obtained in the 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.

An embryonic cell which develops into a pigment cell.

eld in solution by fats, and slowly decolorized by light; distinct from the photochemical pigments of the rods of the retina.

The artificial red sulphide of mercury used as a pigment; vermilion. Cinnabar Græcorum (. Etym: [L. Graecorum, gen. pl., of the Greeks.] (Med.) Same as Dragon's blood. -- Green cinnabar, a green pigment consisting of the oxides of cobalt and zinc subjected to the action of fire. -- Hepatic cinnabar (Min.), an impure…

arsenic used as fly poison. Cobalt bloom. Same as Erythrite. -- Cobalt blue, a dark blue pigment consisting of some salt of cobalt, as the phosphate, ignited with alumina; -- called also cobalt ultramarine, and Thenard's blue. -- Cobalt crust, earthy arseniate of cobalt. -- Cobalt glance. (Min.) See Cobaltite. -- C…

Polishing rouge; a reddish brown oxide of iron, used in polishing glass, and also as a pigment; -- called also crocus Martis.

That which is used to give color; a paint; a pigment; as, oil colors or water colors.

An order of birds, including the pigeons.

A dovecote or pigeon house.

A dovecote; a pigeon house. Sir T. Browne.

onceit; affected sentiment or thought. [Obs.] He . . . is full of conceptions, points of epigram, and witticism. Dryden.

To make a low repeated cry or sound, like the characteristic note of pigeons or doves. The stockdove only through the forest cooes, Mournfully hoarse. Thomson.

A pen, coop, or like shelter for small domestic animals, as for sheep or pigeons; a cote.

To cower or cuddle together, as from fear or cold; to lie close and snug together, as pigs in straw. [Prov. Eng.] Wright. Forby. A dove to fly home her nest and croodle there. C. Kingsley.

A variety of pigeon with a large crop; a pouter.