Silicated soap, a hard soap containing silicate of soda.

(Sil`i*ca*ti*za"tion) n. Silicification.

(||Si*lic"e*a) n. pl. [NL.] (Zoöl.) Same as Silicoidea.

(Si*li"ceous) a. [L. siliceus, fr. silex, silicis, a flint.] Of or pertaining to silica; containing silica, or partaking of its nature. [Written also silisious.]

(Si*len"ti*a*ry) n. [L. silentiarius: cf. F. silenciaire. See Silence.] One appointed to keep silence and order in court; also, one sworn not to divulge secrets of state.

(Si*len"tious) a. [L. silentiosus: cf. F. silencieux.] Habitually silent; taciturn; reticent. [R.]

(Si"lent*ly) adv. In a silent manner.

(Si"lent*ness), n. State of being silent; silence.

(Si*le"nus) n. [L. Silenus the tutor and attendant of Bacchus.] (Zoöl.) See Wanderoo.

(Si*le"si*a) n.

1. A kind of linen cloth, originally made in Silesia, a province of Prussia.

2. A twilled cotton fabric, used for dress linings.

(Si*le"si*an) a. Of or pertaining to Silesia.n. A native or inhabitant of Silesia.

(Si"lex) n. [L., a finit, a pebblestone.] (Min.) Silica, SiO2 as found in nature, constituting quarz, and most sands and sandstones. See Silica, and Silicic.

(Sil`hou*ette") n. [F.; — so called from Etienne de Silhoutte, a French minister of finance in 1759, whise diversion it was to make such portraits on the walls of his apartments.] A representation of the outlines of an object filled in with a black color; a profile portrait in black, such as a shadow appears to be.

(Sil`hou*ette"), v. t. To represent by a silhouette; to project upon a background, so as to be like a silhouette. [Recent]

A flock of roasting vultures silhouetted on the sky.
The Century.

(Sil"i*ca) n. [NL., from L. silex, silics, a flint.] (Chem.) Silicon dioxide, SiO. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder.

(Sil"i*cate) n.[Cf. F. silicate.] (Chem.) A salt of silicic acid.

In mineralogical chemistry the silicates include; the unisilicates or orthosilicates, salts of orthosilicic acid; the bisilicates or metasilicates, salts of metasilicic acid; the polysilicates or acid silicates, salts of the polysilicic acids; the basic silicates or subsilicates, in which the equivalent of base is greater than would be required to neutralize the acid; and the hydrous silicates, including the zeolites and many hydrated decomposition products.

(Sil"i*ca`ted) a. (Chem.) Combined or impregnated with silicon or silica; as, silicated hydrogen; silicated rocks.

  By PanEris using Melati.

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