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Radiograph :: Radiograph (n.) A picture produced by the Rontgen rays upon a sensitive surface, photographic or fluorescent, especially a picture of opaque objects traversed by the rays..

Hygrophanous :: Hygrophanous (a.) Having such a structure as to be diaphanous when moist, and opaque when dry..

Corpulent :: Corpulent (a.) Solid; gross; opaque.

Laumontite :: Laumontite (n.) A mineral, of a white color and vitreous luster. It is a hydrous silicate of alumina and lime. Exposed to the air, it loses water, becomes opaque, and crumbles..

Mercury :: Mercury (n.) A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, /..

Megascope :: Megascope (n.) A modification of the magic lantern, used esp. for throwing a magnified image of an opaque object on a screen, solar or artificial light being used..

Diffraction :: Diffraction (n.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action of a grating of fine lines or bars..

Transparent :: Transparent (a.) Having the property of transmitting rays of light, so that bodies can be distinctly seen through; pervious to light; diaphanous; pellucid; as, transparent glass; a transparent diamond; -- opposed to opaque..

Perspicuous :: Perspicuous (a.) Capable of being through; transparent; translucent; not opaque.

Pus :: Pus (a.) The yellowish white opaque creamy matter produced by the process of suppuration. It consists of innumerable white nucleated cells floating in a clear liquid.

Pterostigma :: Pterostigma (n.) A thickened opaque spot on the wings of certain insects.

Quartz :: Quartz (n.) A form of silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque..

Enamel :: Enamel (v. t.) A glassy, opaque bead obtained by the blowpipe..

Gouache :: Gouache (n.) A method of painting with opaque colors, which have been ground in water and mingled with a preparation of gum; also, a picture thus painted..

Opaque :: Opaque (a.) Obscure; not clear; unintelligible.

Pellucid :: Pellucid (a.) Transparent; clear; limpid; translucent; not opaque.

Pyrophane :: Pyrophane (n.) A mineral which is opaque in its natural state, but is said to change its color and become transparent by heat..

Allanite :: Allanite (n.) A silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote in form and composition..

Cawk :: Cawk (n.) An opaque, compact variety of barite, or heavy spar..

Scumble :: Scumble (v. t.) To cover lighty, as a painting, or a drawing, with a thin wash of opaque color, or with color-crayon dust rubbed on with the stump, or to make any similar additions to the work, so as to produce a softened effect..

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