Sil"i*cle (?), n. [L. silicula, dim. of siliqua a pod or husk: cf. F.
silicule.] (Bot.) A seed vessel resembling a silique, but about as
broad as it is long. See Silique.
Sil"i*co- (?). (Chem.) A combining form (also used adjectively)
denoting the presence of silicon or its compounds; as, silicobenzoic,
silicofluoride, etc.
Sil`i*co*flu*or"ic (?), a. (Chem.) Containing, or composed of, silicon
and fluorine; especially, denoting the compounds called
silicofluorides.
Silicofluoric acid (Chem.), a compound of hydrofluoric acid and silicon
fluoride, known only in watery solution. It is produced by the action
of silicon fluoride on water, and is regarded as an acid, H2SiF6, and
the type and origin of the silicofluorides.
Sil`i*co*flu"or*ide (?), n. (Chem.) A fluosilicate; a salt of
silicofluoric acid.
||Sil`i*coi"de*a (?), n. pl. [NL. See Silex, and -oid.] (Zoöl.) An
||extensive order of Porifera, which includes those that have the
||skeleton composed mainly of siliceous fibers or spicules.
Sil"i*con (?), n. [See Silica.] (Chem.) A nonmetalic element analogous
to carbon. It always occurs combined in nature, and is artificially
obtained in the free state, usually as a dark brown amorphous powder,
or as a dark crystalline substance with a meetallic luster. Its oxide
is silica, or common quartz, and in this form, or as silicates, it is,
next to oxygen, the most abundant element of the earth's crust. Silicon
is characteristically the element of the mineral kingdom, as carbon is
of the organic world. Symbol Si. Atomic weight 28. Called also
silicium.
Sil`i*co*tung"stic (?), a. (Chem.) Of, pertaining to, or designating,
any one of a series of double acids of silicon and tungsten, known in
the free state, and also in their salts (called silicotungstates).
||Si*lic"u*la (?), n. [L.] (Bot.) A silicle.
Sil"i*cule (?), n. (Bot.) A silicle.
Si*lic"u*lose` (?), a. [NL. siliculosus, fr. L. silicula: cf. F.
siliculeux. See Silicle.] 1. (Bot.) Bearing silicles; pertaining to, or
resembling, silicles.