Fluosilicic acid, a double fluoride of hydrogen and silicon, H2F6Si, obtained in solution in water as a sour fuming liquid, and regarded as the type of the fluosilicates; — called also silicofluoric acid, and hydrofluosilicic acid.

Flurried
(Flur"ried) a. Agitated; excited.Flur"ried*ly adv.

Flurry
(Flur"ry) n.; pl. Flurries [Prov. E. flur to ruffle.]

1. A sudden and brief blast or gust; a light, temporary breeze; as, a flurry of wind.

2. A light shower or snowfall accompanied with wind.

Like a flurry of snow on the whistling wind.
Longfellow.

3. Violent agitation; commotion; bustle; hurry.

The racket and flurry of London.
Blakw. Mag.

4. The violent spasms of a dying whale.

Flurry
(Flur"ry), v. t. [imp. & p. p. Flurried ; p. pr. & vb. n. Flurrying.] To put in a state of agitation; to excite or alarm. H. Swinburne.

Flurt
(Flurt) n. A flirt. [Obs.] Quarles.

Flush
(Flush) v. i. [imp. & p. p. Flushed ; p. pr. & vb. n. Flushing.] [Cf. OE. fluschen to fly up, penetrate, F. fluz a flowing, E. flux, dial. Sw. flossa to blaze, and E. flash; perh. influenced by blush. &radic84.]

Fluorine unites with hydrogen to form hydrofluoric acid, which is the agent employed in etching glass. It occurs naturally, principally combined as calcium fluoride in fluorite, and as a double fluoride of aluminium and sodium in cryolite.

Fluorite
(Flu"or*ite) n. (Min.) Calcium fluoride, a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as a flux. Some varieties are used for ornamental vessels. Also called fluor spar, or simply fluor.

Fluoroid
(Flu"or*oid) n. [Fluor + - oid.] (Crystallog.) A tetrahexahedron; — so called because it is a common form of fluorite.

Fluoroscope
(Flu*or"o*scope) n. [Fluorescence + -scope.] (Phys.) An instrument for observing or exhibiting fluorescence.

Fluorous
(Flu"or*ous) a. Pertaining to fluor.

Fluor spar
(Flu"or spar`) (Min.) See Fluorite.

Fluosilicate
(Flu`o*sil"i*cate) n. [Cf. F. fluosilicate.] (Chem.) A double fluoride of silicon and some other (usually basic) element or radical, regarded as a salt of fluosilicic acid; — called also silicofluoride.

Fluosilicic
(Flu`o*si*lic"ic) a. [Fluo- + silicic: cf. F. fluosilicique.] (Chem.) Composed of, or derived from, silicon and fluorine.


  By PanEris using Melati.

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