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To change on the surface, or throughout, to a whitish, mealy, or crystalline powder, from a gradual decomposition, esp. from the loss of water, on simple exposure to the air; as, Glauber's salts, and many others, effloresce.

The formation of the whitish powder or crust on the surface of efflorescing bodies, as salts, etc.

essing the bounds of duty or decorum; insulting presumptuousness; shameless boldness; barefaced assurance. Corruption lost nothing of its effrontery. Bancroft.

on through its walls. It may pass into the substance of an organ, or issue upon a free surface.

ain (of a given kind) which it produces; -- called also coefficient of resistance. -- Surface of elasticity (Geom.), the pedal surface of an ellipsoid (see Pedal); a surface used in explaining the phenomena of double refraction and their relation to the elastic force of the luminous ether in crystalline media.…

A sharp angle in any surface of wainscoting or other woodwork; the upright sides which flank any paneled work, as the sides of windows, where the jamb makes an elbow with the window back. Gwilt.

ctions; also, by attraction for many substances, by a law involving attraction between surfaces of unlike polarity, and repulsion between those of like; by exhibiting accumulated polar tension when the circuit is broken; and by producing heat, light, concussion, and often chemical changes when the circuit passes betwee…

tating a metal electro-chemical action, by which a coating is deposited, on a prepared surface, as in electroplating and electrotyping; galvanoplasty.

Possessing electrical polarity; positively electrified at one end, or on one surface, and negatively at the other; -- said of a conductor.

Sometimes a curve, or surface, or volume is considered as described by a moving point, or curve, or surface, the latter being at any instant called an element of the former.

Inlay; inlaid or mosaic work; something ornamental inserted in a surface. [Obs.] Milton.

To arise the surface of into bosses or protuberances; particularly, to ornament with raised work. Botches and blains must all his flesh emboss. Milton.

nence; figure in relief; raised work; jut; protuberance; esp., a combination of raised surfaces having a decorative effect. "The embossment of the figure." Addison.

ued for scouring and polishing. -- Emery wheel, a wheel containing emery, or having a surface of emery. In machine shops, it is sometimes called a buff wheel, and by the manufacturers of cutlery, a glazer.

ative facility of emission, or rate at which emission takes place, as of heat from the surface of a heated body.

To make pale. [Obs.] No bloodless malady empales their face. G. Fletcher.

A kind of masonry in which the outer faces of the wall are ashlar, the space between being filled with broken stone and mortar. Cross layers of stone are interlaid as binders. [R.] Weale.

A variety of glass, used in ornament, to cover a surface, as of metal or pottery, and admitting of after decoration in color, or used itself for inlaying or application in varied colors.

Coated or adorned with enamel; having a glossy or variegated surface; glazed. [Written also enamelled.]

Any unusual outgrowth from the surface of a thing, as of a petal; also, the capacity or act of producing such an outgrowth.