They are transparent to translucent, with a vitreous lustre, and are of an emerald-green to blackish-green colour.
Blue Brick is a very strongvitreous brick of dark, slaty-blue colour, used in engineering works where great strength or impermeability is desirable.
Those in vitreous paste are of pale blue, transparent yellowish and transparent brown.
It is a brittle vitreous solid, not volatilised by heat except in the presence of water.
In the porcelain and earthenware manufacture, the vitreous coating which is so essential to the beauty and utility of potter's ware.
This term was applied by the older chemists to various substances to which a vitreous appearance has been given by heat.
Borax dried at a gentle heat, and then melted by increasing the heat until it forms a vitreous mass on being cooled.
About 1640 it became the custom occasionally to model the design in relief with a paste of white enamel, which was afterwards painted with vitreous colours according to nature.
Other mock pearls are made up of a vitreous composition formed largely of the pearl essence.
The lake, as well as the forest on its shores, appeared less sombre; and the corrugated flanks of the enchanted hill glanced with a vitreous reflection like the greenish waves of an agitated sea.
The moon had disappeared below the horizon, and the vitreous transparence which her light had lent to the enchanted hill, giving it a semblance of life, was no more to be observed.
The vitreous glistening of its sides, taken in conjunction with the mass of thick white fog which usually robes the summit of the mountain, offers to the eye an aspect at once fantastic and melancholy.
A mineral of a brownish red color and vitreous luster, consisting chiefly of the silicates of iron, zirconia, and lime.
To deprive of glasslike character; to take away vitreous luster and transparency from.
The vitreous substance serves as a varnish to terra-cotta from the time of the first dynasty, and it is found thus employed on the posts of the sepulchral door of the step-pyramid at Sakkara.
The light, coming through the pupil and traversing the vitreous humor, strikes the retina from the inside of the eyeball.
The "aqueous and vitreous humors" fill the eyeball and keep it in shape, while still, being transparent, they allow the light to pass through them on the way to the retina.
The molten mass seems to have flowed over in successive waves, and the top of each wave was covered with a dark vitreous scum carrying scoriæ with angular fragments.
Some of these were of a reddish appearance, and others had a vitreous lustre, resembling immense crystals, in places broken into the semblance of foliage, which reflected an olive green light.
Darting into the soil it frequently forms tubes of vitreous appearance by fusing the earth and stones as it passes.
Another rock exposed at the foot of the steep ascent is a semi-vitreous basaltic-andesite, doleritic in texture and ophitic structure, but apparently not much changed.
Approaching it from Nambuna on the east, I found at its foot a large mass of pitchstone-agglomerate, formed of fragments of vitreous basic rocks, such as occurs around the lower part of Soloa Levu on the other side of the valley.
The magnetite in the groundmass, although abundant, is not in greater quantity than is usually found in semi-vitreous basaltic rocks without polarity.
They correspond with the type of the semi-vitreous basalt or basaltic andesite, of which the blocks of the overlying agglomerates are as a rule composed and are doubtless derived from the same source.
The blocks of the agglomerate are composed of a semi-vitreous basaltic andesite, showing minute felspar-lathes in flow-arrangement in an abundant smoky glass, the fine pyroxene being not differentiated.
The pitchstone or vitreous form of these trachytes is displayed in the blocks of an agglomerate-tuff between Tawaki and Mount Thuku.
They comprise the coarse textured dolerite as well as the vitreous pitchstone and include both scoriaceous and amygdaloidal rocks.
The blocks in the agglomerates are composed of a blackish semi-vitreous pyroxene-andesite (sp.
The bomb-rock is a semi-vitreous basaltic andesite.
But it was not until I had discovered the tests of the foraminifera and had observed some fragments of larger crystals of plagioclase and a little detritus of a semi-vitreous basaltic rock that its clastic character was disclosed.
This he threw into melted lead, but it was almost all driven off in smoke, leaving only a vitreous earth.
The lustre was vitreous to such a degree that the name vitrum murrhinum was given to the artificial fabric, in Egypt.
This then will repel more vitreous ether from the second zinc plate into the third silver one; and so on till the plates of air between the zincs and silvers are all charged, and each stronger and stronger, as they descend in the pile.
When either the vitreous or resinous electric ether is accumulated on an insulated conductor, and an uninsulated conductor, as the finger of an attendant, is applied nearly in contact with it, what happens?
The portion behind the iris forms the posterior chamber, and contains the crystalline lens and a transparent, jelly-like fluid, the vitreous humor.
The vitreous humor fills about four-fifths of the eyeball and prevents it from falling into a shapeless mass.
These media are the cornea, the aqueous humor, and the vitreous humor.
It is with the retina, therefore, that the vitreous humor is in contact.
In the healthy eye the aqueous humor, lens, and vitreous humor are clear, and do not in any way obstruct the passage of the light.
It is into a depression in the front of this that the aforesaid lens is fitted, so that the whole space of the eye behind the iris is filled by the lens and vitreous body.
They are then met with as the sequences of severe choroido-iritis, and usually coincide with further mischief in the vitreous and choroid.
When any of the vitreous humour has escaped, in consequence of its cells having been broken down, and its tenacity diminished, the eye soon fills again, but good vision is hardly to be expected.
When the vitreous humour has become disorganised, the lens often floats about, rising and falling with the motions of the head.
In consequence of thevitreous humour also accumulating, the whole organ is ultimately enlarged considerably, and its motions are thereby much impeded.
The aqueous humour immediately escapes, and in most cases the crystalline lens and vitreous humour are also discharged.
Glaucoma, or green cataract, is a disease of the hyaloid membrane and vitreous humour, probably depending on a varicose state of the bloodvessels.
But though the external wound is apparently insignificant, the vitreous table is extensively separated, and, perhaps, broken into innumerable minute and sharp spicula.
These are of a remarkably fine material, sometimes unpolished or unglazed, and at others covered with a vitreous siliceous glaze, or white coating.
The external mucus exuding from the skin becomes oxydized, the inferior on the contrary reduced; the oxydized becomes vitreous and transparent.
The vitreous body, which fills out the cyst of the retina, is the cerebral medulla which has become transparent, or a semi-fluid albuminous mass.
Beneath the vitreousepidermis there is thus a metallic pigmentary membrane.
With the maximum of oxydation the epidermis passes over into a vitreous transparent horn, e.
A pot of green bottle-glass had been allowed to cool slowly with the result that it had a stony, rather than a vitreous structure.
History of Glass and all vitreous substances, and of Glass-making.
Our use of the terms retina, cornea, and vitreous humor may be traced to the translation of his work on optics.
Dufay had recognized two sorts of electricity, obtained by rubbing a glass rod and a stick of resin, and had spoken of them as vitreous and resinous.
The act or art of setting glass; the art of covering with a vitreous or glasslike substance, or of polishing or rendering glossy.
A mineral of a transparent vitreous brown color, found in the ejected masses of Vesuvius.
The vitreous coating of pottery or porcelain; anything used as a coating or color in glazing.
A mineral of a nearly black color and vitreous luster, and consisting principally of the silicates of yttrium, cerium, and iron.
They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so.
Every substance, whether earthenware, stone, or metal, to which a vitreous substance can be made to adhere by heat may be enamelled, but this term is usually restricted to metalwork ornamented by a vitreous glaze.
We remarked here, certain vitreous formations, in all, except form, identical with those already described as having been seen at Point Swan.
Some of these great masses, both of the living cliff and ruined blocks beneath, are strangely pierced with a vein or tube of vitreous matter, not less in some instances than 18 inches in diameter.
Even siliceous rocks, as we shall see further on, are transformed by it, forming when fused with it vitreous slags.
Whether this is so or not, it is interesting to note that in the British Museum and Museum of Geology there are cakes of vitreous matter from Castor, probably used as a glaze, and consisting of silicates of soda and lime.
Subsequently it becomes morevitreous but less porous; it is more compact and sonorous, free from mica, and more brilliant and lustrous.
The paste is remarkably hard, breaking with an almost vitreous fracture, and sometimes shows fragments of red brick (pozzolana) ground up with it to bind it together, and prevent warping.
This enamelling appears to have been done, not by melting on any vitreous composition, as is practised at the present day, but by the effect of calcination for some time in a low red heat.
It is a more imperishable substance, of a close texture, and vitreous appearance.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "vitreous" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: glass; glassy; hyaline
