Fluky Fluk"y adjective Formed like, or having, a fluke.

Flume Flume noun [ Confer Middle English flum river, OF, flum , from Latin flumen , from fluere to flow. √84. See Fluent .] A stream; especially, a passage channel, or conduit for the water that drives a mill wheel; or an artifical channel of water for hydraulic or placer mining; also, a chute for conveying logs or lumber down a declivity.

Fluminous Flu"mi·nous adjective [ Latin flumen , fluminis , river.] Pertaining to rivers; abounding in streama.

Flummery Flum"mer·y noun [ W. llumru , or llumruwd , a kind of food made of oatmeal steeped in water until it has turned sour, from llumrig harsh, raw, crude, from llum sharp, severe.] 1. A light kind of food, formerly made of flour or meal; a sort of pap.

Milk and flummery are very fit for children.

Locke.

2. Something insipid, or not worth having; empty compliment; trash; unsubstantial talk of writing.

The flummery of modern criticism.

J. Morley.

Flung Flung imperfect & past participle of Fling .

Flunk Flunk (flŭnk) intransitive verb [ imperfect & past participle Flunked (flŭnkt); present participle & verbal noun Flunking .] [ Confer Funk .] To fail, as on a lesson; to back out, as from an undertaking, through fear.

Flunk Flunk transitive verb To fail in; to shirk, as a task or duty. [ Colloq. U.S.]

Flunk Flunk noun A failure or backing out ; specifically (College cant), a total failure in a recitation. [ U.S.]

Flunky Flun"ky (flŭn"kȳ) noun ; plural Flunkies (- kĭz). [ Prob. from or akin to flank .] [ Written also flunkey .] 1. A contemptuous name for a liveried servant or a footman.

2. One who is obsequious or cringing; a snob.

3. One easily deceived in buying stocks; an inexperienced and unwary jobber. [ Cant, U.S.]

Flunkydom Flun"ky·dom noun The place or region of flunkies. C. Kingsley.

Flunlyism Flun"ly·ism noun The quality or characteristics of a flunky; readiness to cringe to those who are superior in wealth or position; toadyism. Thackeray.

Fluo- Flu"o- (Chemistry) A combining form indicating fluorine as an ingredient; as in fluo silicate, fluo benzene.

Fluoborate Flu`o·bo"rate noun [ Confer French fluoborate .] (Chemistry) A salt of fluoboric acid; a fluoboride.

Fluoboric Flu`o·bo"ric adjective [ Fluo- boric : confer French fluoborique .] (Chemistry) Pertaining to, derived from, or consisting of, fluorine and boron.

Fluoridic acid (Chemistry) , a double fluoride, consisting essentially of a solution of boron fluoride, in hydrofluoric acid. It has strong acid properties, and is the type of the borofluorides. Called also borofluoric acid .

Fluoboride Flu`o·bo"ride noun (Chemistry) See Borofluoride .

Fluocerine, Fluocerite Flu`o·ce"rine, Flu`o·ce"rite noun [ Fluo- + cerium .] (Min.) A fluoride of cerium, occuring near Fahlun in Sweden. Tynosite, from Colorado, is probably the same mineral.

Fluohydric Flu`o·hy"dric adjective [ Fluo- + hydro gen.] (Chemistry) See Hydrofluoric .

Fluophosphate Flu`o·phos"phate noun [ Fluo- + phosphate .] (Chemistry) A double salt of fluoric and phosphoric acids.

Fluor Flu"or noun [ Latin , a flowing, from fluere to flow. See Fluent .] 1. A fluid state. [ Obsolete] Sir I. Newton.

2. Menstrual flux; catamenia; menses. [ Obsolete]

3. (Min.) See Fluorite .

Fluor albus Flu"or albus [ Latin , white flow.] (Medicine) The whites; leucorrhæa.

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

Fluoranthene Flu`or·an"thene noun [ Fluor ene + anth racene.] (Chemistry) A white crystalline hydrocarbon C ₁₅ H ₁₀ , of a complex structure, found as one ingredient of the higher boiling portion of coal tar.

Fluorated Flu"or·a`ted adjective (Chemistry) Combined with fluorine; subjected to the action of fluoride. [ R.]

Fluorene Flu`or·ene noun (Chemistry) A colorless, crystalline hydrocarbon, C ₁₃ H ₁₀ having a beautiful violet fluorescence ; whence its name. It occurs in the higher boiling products of coal tar, and is obtained artificially.

Fluorescein Flu`o·res"ce·in noun (Chemistry) A yellowish red, crystalline substance, C ₂₀ H ₁₂ O ₅ , produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin .

Fluorescence Flu`o·res"cence noun [ From Fluor .] (Opt.) That property which some transparent bodies have of producing at their surface, or within their substance, light different in color from the mass of the material, as when green crystals of fluor spar afford blue reflections. It is due not to the difference in the color of a distinct surface layer, but to the power which the substance has of modifying the light incident upon it. The light emitted by fluorescent substances is in general of lower refrangibility than the incident light. Stockes.

Fluorescence Flu`o·res"cence noun A property possessed by fluor spar, uranium glass, sulphide of calcium, and many other substances, of glowing without appreciable rise of temperature when exposed to light or to ultra-violet rays, cathode rays, X rays, etc.

Fluorescent Flu`o·res"cent adjective Having the property of fluorescence.

Fluorescin Flu`o·res"cin noun (Chemistry) A colorless, amorphous substance which is produced by the reduction of fluoresceïn, and from which the latter may be formed by oxidation.

Fluoric Flu·or"ic adjective [ Confer French fluorique .] (Chemistry) Pertaining to, obtained from, or containing, fluorine.

Fluoride Flu"or·ide noun [ Confer French fluoride .] (Chemistry) A binary compound of fluorine with another element or radical.

Calcium fluoride (Min.) , fluorite, CaF ₂ . See Fluorite .

Fluorine Flu"or·ine (flū"ŏr*ĭn or -ēn; 104) noun [ New Latin fluorina : confer German fluorin , French fluorine . So called from its occurrence in the mineral fluorite .] (Chemistry) A non-metallic, gaseous element, strongly acid or negative, and associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepared nor kept in glass vessels. If set free it immediately attacks the containing material, so that it was not isolated until 1886. It is a pungent, corrosive, colorless gas. Symbol F. Atomic weight 19.

» 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 noun (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 noun [ Fluor + - oid .] (Crystallog.) A tetrahexahedron; -- so called because it is a common form of fluorite.

Fluoroscope Flu·or"o·scope noun [ Fluor escence + -scope .] (Physics ) An instrument for observing or exhibiting fluorescence.

Fluoroscope Flu·or"o·scope noun (Physics) A fluorescent screen, with hood to protect the eyes, used for observing the shadows cast by objects placed in the path of the X rays. -- Flu*or`o*scop"ic adjective

Fluoroscopy Flu`or·os"co·py noun Examination of an object, as the human body, by exposing it to the X rays and observing the shadow cast upon a fluorescent screen; cryptoscopy.

Fluorous Flu"or·ous adjective Pertaining to fluor.

Fluosilicate Flu`o·sil"i·cate noun [ Confer French fluosilicate .] (Chemistry) 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 adjective [ Fluo- + silicic : confer French fluosilicique .] (Chemistry) Composed of, or derived from, silicon and fluorine.

Fluosilicic acid , a double fluoride of hydrogen and silicon, H ₂ F ₆ Si, 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 adjective Agitated; excited. -- Flur"ried*ly adverb

Flurry Flur"ry noun ; plural Flurries . [ Prov. English 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 transitive verb [ imperfect & past participle Flurried ; present participle & verbal noun Flurrying .] To put in a state of agitation; to excite or alarm. H. Swinburne.

Flurt Flurt noun A flirt. [ Obsolete] Quarles.

Flush Flush intransitive verb [ imperfect & past participle Flushed ; present participle & verbal noun Flushing .] [ Confer Middle English fluschen to fly up, penetrate, French fluz a flowing, English flux , dial. Swedish flossa to blaze, and English flash ; perhaps influenced by blush . √84.] 1. To flow and spread suddenly; to rush; as, blood flushes into the face.

The flushing noise of many waters.

Boyle.

It flushes violently out of the cock.

Mortimer.

2. To become suddenly suffused, as the cheeks; to turn red; to blush.

3. To snow red; to shine suddenly; to glow.

In her cheek, distemper flushing glowed.

Milton.

4. To start up suddenly; to take wing as a bird.

Flushing from one spray unto another.

W. Browne.

Flush Flush transitive verb 1. To cause to be full; to flood; to overflow; to overwhelm with water; as, to flush the meadows; to flood for the purpose of cleaning; as, to flush a sewer.

2. To cause the blood to rush into (the face); to put to the blush, or to cause to glow with excitement.

Nor flush with shame the passing virgin's cheek.

Gay.

Sudden a thought came like a full-blown rose,
Flushing his brow.

Keats.

3. To make suddenly or temporarily red or rosy, as if suffused with blood.

How faintly flushed . how phantom fair,
Was Monte Rosa, hanging there!

Tennyson.

4. To excite; to animate; to stir.

Such things as can only feed his pride and flush his ambition.

South.

5. To cause to start, as a hunter a bird. Nares.

To flush a joints (Masonry) , to fill them in; to point the level; to make them flush.

Flush Flush noun 1. A sudden flowing; a rush which fills or overflows, as of water for cleansing purposes.

In manner of a wave or flush .

Ray.

2. A suffusion of the face with blood, as from fear, shame, modesty, or intensity of feeling of any kind; a blush; a glow.

The flush of angered shame.

Tennyson.

3. Any tinge of red color like that produced on the cheeks by a sudden rush of blood; as, the flush on the side of a peach; the flush on the clouds at sunset.

4. A sudden flood or rush of feeling; a thrill of excitement. animation, etc.; as, a flush of joy.

5. A flock of birds suddenly started up or flushed.

6. [ From F. or Spanish flux . Confer Flux .] A hand of cards of the same suit.

Flush Flush adjective 1. Full of vigor; fresh; glowing; bright.

With all his crimes broad blown, as flush as May.

Shak.

2. Affluent; abounding; well furnished or suppled; hence, liberal; prodigal.

Lord Strut was not very flush in ready.

Arbuthnot.

3. (Arch. & Mech.) Unbroken or even in surface; on a level with the adjacent surface; forming a continuous surface; as, a flush panel; a flush joint.

4. (Card Playing) Consisting of cards of one suit.

Flush bolt . (a) A screw bolt whose head is countersunk, so as to be flush with a surface. (b) A sliding bolt let into the face or edge of a door, so as to be flush therewith. -- Flush deck . (Nautical) See under Deck , noun , 1. -- Flush tank , a water tank which can be emptied rapidly for flushing drainpipes, etc.

Flush Flush adverb So as to be level or even.

Flush Flush transitive verb To cause by flow; to draw water from, or pour it over or through (a pond, meadow, sewer, etc.); to cleanse by means of a rush of water.

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