Silentiary
(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.
Silentious
(Si*len"tious) a. [L. silentiosus: cf. F. silencieux.] Habitually silent; taciturn; reticent. [R.]
Silently
(Si"lent*ly) adv. In a silent manner.
Silentness
(Si"lent*ness), n. State of being silent; silence.
Silenus
(Si*le"nus) n. [L. Silenus the tutor and attendant of Bacchus.] (Zoöl.) See Wanderoo.
Silesia
(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 A kind of linen cloth, originally made in Silesia, a province of Prussia.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.
Silesian
(Si*le"si*an) a. Of or pertaining to Silesia. — n. A native or inhabitant of Silesia.
Silex
(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.
Silhouette
(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.
Silhouette
(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. Silica
(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.
Silicate
(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.
Silicated
(Sil"i*ca`ted) a. (Chem.) Combined or impregnated with silicon or silica; as, silicated hydrogen;
silicated rocks.
Silicated soap, a hard soap containing silicate of soda.
Silicatization
(Sil`i*ca*ti*za"tion) n. Silicification.
Silicea
(||Si*lic"e*a) n. pl. [NL.] (Zoöl.) Same as Silicoidea.
Siliceous
(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.]
