fluty 
fluty (flo'ti), . [< flutel + -01.] Soft and clear 
in tone, like a flute. 
fluvial (flo' vi-al), a. [= Y. fluvial = Pr. Sp. Pg. 
fluvial = li.fl'itviale, < L,.fliteial<K, < fluvius, OL. 
flovios, a river, < fluere, flow: see fluent.'] Ee- 
lating or pertaining to rivers: as, Jlurial wa- 
ters; fluvial navigation or fisheries. 
The United States happily lias not yet experienced such 
erious Jlurial irregularities as have long wasted southern 
2292 
fluxive 
and central Europe. 
The Xation, Dec. 6, 1883. 
Next in interest to the Agonistic types of Sicilian Mints 
are what may be called the fluvial types, under which 
that main source o( the fertility of Sicily its springs and 
rivers was represented. 
C. T. Newton, Art and Archieol., p. 422. 
fluvialist (flo'vi-al-ist), n. [< fluvial + -ist.} 
One who explains geological phenomena by the 
action of existing streams. 
fluviatic (flo-vi-at'ik), . [< L. fluviaUcus, < 
fluvius, a river: see fluvial.] Fluvial; fluvia- 
tile. [Rare.] 
fluviatile (flo'vi-a-til), a. [= f. fluviatile = Pg. 
fluviatil = It. fluviatile, < L. fluviatilis, of or 
belonging to a river, (.fluvius, a river: see flu- 
vial.] Of riverine nature; growing in or near 
fresh water ; produced by river action ; fluvial : 
as, fluviatile species or deposits. 
A lake is the landscape's luost beautiful and expressive 
feature. It is earth's eye. . . . The fluviatile trees next 
the shore are the sleuder eyelashes which fringe it. 
Thoreau, Walden, p. 202. 
The river is, itself, a powerful agent of direct denuda- 
tion fluviatile denudation, as it is sometimes termed. 
Huxley, Physiography, p. 135. 
Fluviatilidae (fla'vi-a-til'i-de), n. pi [NL., < 
i,. fluviatilis + -id(e.} A family of fresh-water 
or river sponges, distinguished from the Lacus- 
tridce by the birotulate shape of the skeletal 
spicules. 
Fluvicola (fli?-vik'o-la), . [NL., < 'L. fluvius, 
a river, + colere, inhabit.] 1. The typical ge- 
nus of watercaps of the subfamily Fluvicolitue, 
flowing ; a flowing, as of a fluid ; flow in gen- For the flux>M,t v of human nature is so great that it 
Pi-nl hiit iinw Tnnsjt pnmmnnlvmi ncpasiminl is no wonder if errors should have crept in, the ways be- 
eral, but now mobt commonly an o isiouai , 80 m , mt it is t . a , ,,,.,. of God that Ilone 
flow ; an outpouring or eflusion ol anything. should ever creep in. Hammond, Works, II. 093. 
The cause of the extraordinary swiftness of this lake is fluxible (fluk'si-bl), a. [= OF. fluxible = OSp. 
the continuall fluxe of the snow-water descending from ,.,-{,, p g ft ux i re l _ It. flussibilf, < ML. fln.fi- 
those mountames. Coryat, I rudnies, 1. 84. ^^^ L ^^ ^^ fl^ 8ee 
fluent, flux.} Capable of undergoing flux or 
change; specifically, fusible. [Obsolete in fig- 
urative uses.] 
But the evening deawes cause them [pearls] to be soft 
and fluxible. Holland, tr. of Ammianus, p. 238. 
Koflux and reflux of thought, half meditative, half ca- 
pricious. De yuincey, Rhetoric. 
Good Education and acquisit Wisdom ought to correct 
thefluxilile fault, if any such be, of our watry situation. 
Milton, Free Commonwealth. 
(fluk'si-bl-nes), . Same asfluxi- 
Hence 2. Continual change ; the mode of be- 
ing of that which is instantaneous, ceasing to 
exist as soon as it begins to exist. This is spe- 
cifically termed Hmiclitanflux, from the doctrine of the 
ancient Greek philosopher Heraclitus that there is no be- 
ing or permanence, but that all things are transitory and 
fleeting. 
For time considered in itself is but the flux of that very 
instant wherein the motion of the heaven began. , ,-_ . 
HuXllet (fluk sil), a. [\ LL. fluxiws, fluid, \ 
fluxus,V'p.offluere,&ow. see fluent, flux.} Same 
as fluxible. 
AU things, as the old skeptics said, are in ceaseless.^*; fluxilityt (nuk-sil'i-ti), n. [< fluxile + -it,,.} 
and yet, to find truth, we must find something penna- Same as flttXtoHi/i/. 
Our experiments seem to teach that the supposed aver- 
sion of nature to a vacuum is but accidental, or in conse- 
quence partly of the weight and fluidity, or at least (lux- 
Certain it is that matter is in a perpetual flux and never 
at a stay. Bacon, Vicissitude of Things (ed. 1887). 
nent Leslie Stephen, Eng. Thought, i. 28. 
3. In pathol., a morbid or abnormal issue or 
discharge of matter, as blood, mucus, or pus, 
from any mucous surface of the internal ves- 
sels or viscera : as, the bloody flux (dysentery). 
It bifel, the fadir of Publius for to ligge travelid with 
feveres and dissenterie or nix. 
ility, of the bodies here below. Boyle, Works, I. 75. 
luxing-bed (fluk'sing-bed), ti. In the manu- 
facture of soda, one of the two parts into which 
the sole of the furnace is divided. It is lower 
than the other part, and slightly concave. 
The next year [A 
fluxei upon men, 
nere -or x. than the other part, and slightly concave. 
>!,/, Deeds [Acts] xxv.il. 8 (Oxf.). &nxioTi (nuk ' sh Qn), n. [< F. fluxion = Sp. flu- 
A.D. 987] was calamitous, bringing strange xion _ p K- fluxao = It. flumone, < L. fluxioin-), 
, and murren upon Cartel. _ . **&..,_). fl n ^i^^. < ti., lf rm. HVMIX. 
Milton, Hist. Eng., vi. 
var. of fluctio(n-), a flowing, < flttere, pp. flu 
flow: see fluent, fluctuate.} 1. The act of flow- 
4. Matter which is discharged in a flux; de- ing . fl uxa ti on ; change. 2. That which flows ; 
fluxion ; excrement. 
Civet is of a baser birth than tar ; the very uncleanly 
flux of a cat. Shak., As you Like it, iii. 2. 
5. A flowing together ; concourse ; confluence. 
Thus misery doth part the flux of company. 
Shak., As you Like it, ii. 1. 
6. Fusion; conversion to a liquid state by the 
operation of heat. 7. In metal., any sub- 
stance'or mixture used to promote the fusion 
of metals or minerals, as alkalis, borax, tar- 
tar, and other saline matter, or, in large opera- 
tions, limestone or fluor-spar. Alkaline fluxes are 
either the crude, the white, or the black flux. When tar- 
tar is deflagrated with half its weight of niter, a mixture 
of charcoal and carbonate of potash remains, which is 
often called black flux ; when an equal weight of niter is 
used, tlie whole of the charcoal is burned off, and carbo- 
that which changes ; a flux. 
Some faine that these should lie the cataracts of heauen, 
which were all opened at Noe's flood. But I think them 
rather to be such fluxion* and eruptions as Aristotle, iu 
his booke de Muudo, saith to chance in the sea. 
Uakluyt's Voyages, II. 11. 21. 
And this is wrought the rather, by means of those flux- 
ions which rest upon waters, looking-glasses, or any such 
mirrors by way of repercussion. 
Holland, tr. of Plutarch, p. 594. 
Specifically (a) In mtd. : (1) An abnormal flow or deter- 
mination of blood or other humor to any organ, as the 
brain ; active hyperemia. (2) A catarrh. (It) The running 
or reduction of metals to a fluid state; fusion. Craig, 
(c) Something, as an indication, which constantly varies. 
[Rare.] 
Less to be counted than the fluxions of sun-dials. 
De Quincey. 
3. In math., the rate of change of a continuous- 
, . 
nate of potassium remains, which, when thus procured, is \y var ying quantity; the differential coefficient 
called white flux. & io+;^aiir tr* *ko tJma .1., .;..,.; .1.,,. , i i., .. ,i..t 
Watercap (Fluvicola climacura). 
established by Swainson in 1827. F. climaeura 
and F. pica are characteristic examples. The 
plumage is black and white. The birds inhabit the pam- 
pas and other open places, generally in the vicinity of 
water. 
2. A genus of crustaceans. 
Fluvicolinae (flo-vik-6-li'ne), n. p?. [NL., < 
Fluvicola + -ina?.} A subfamily of South 
American clamatorial tyrant flycatchers, of 
the family Tyrannidte, taking name from the 
genus Fluvicola; the watercaps. Also called 
Alectrurinw and Tteniopterinte. 
fluvicoline (flo-vik'o-lin), a. [As Fluvicola + 
-we 1 . ] Fluvial or fluviatile ; inhabiting rivers, 
or frequenting their banks ; specifically, of or 
pertaining to the Fluvicolinas. 
fluviomarine (flo"vi-6-ma-ren'), a. [< L. flu- 
vius, a river, + marinus, of the sea : see fluvial 
and marine.} In geol., an epithet applied to 
such deposits as have been formed in estuaries, 
or on the bottom of the sea at a greater or less 
distance from the embouchure, by rivers bear- 
ing with them the detritus of the land. 
fluvioterrestrial (fl6"vi-6-te-res'tri-al), a. [< 
ii.fluviug, a river, + terrestris, of the earth : see 
fluvial and terrestrial.} Pertaining to the land- 
surface of the globe and its fresh waters; not 
marine or maritime. 
called white fl\ 
8. In math., a vector which is referred to a unit 
of area. Bloody flux, dysentery. Hepatic flux, bil- 
ious flux. 
Il.t a. Flowing; changing; inconstant; va- 
riable. 
Our argument for such a translation is the flux nature 
of living languages. 
Abp. Xemmne, Eng. Biblical Trans., p. 233. 
flux (fluks), v. [< flux, n.} I. trans. If. To 
flood; overflow. 
Surely, that God is merciful! that will admit offences 
to be expiated by the sigh and fluxed eyes. 
Feltham, Resolves, i. 89. 
2. In med., to cause a flux or evacuation from ; 
salivate; purge. 
He might fashionably and genteelly have been duelled 
or fluxed into another world. South, Sermons, II. 215. 
relatively to the time. A fluxion is denoted by a dot 
placed over the symbol of the fluent or variable. This 
term and the method of fluxion* (which see, below) were 
invented by Sir Isaac Newton. 
Fluxions themselves should be regarded as generally 
finite, according to what seems to have been the ultimate 
view of Newton. Sir W. R. Hamilton. 
When a quantity changes from time to time, its rate of 
change is called the fluxion of the quantity. 
H". K. CU/ord, Lectures, II. 15. 
Corresponding fluxions, rates at which two connect- 
ed quantities may change together ; simultaneous differ- 
entials. Fluent of a fluxion. See fluent. inverse 
method of fluxions, the method of treating problems of 
integration by means of fluxions. Method Of fluxions, 
Newton's form of the calculus, hardly distinguishable 
from the diffeiential calculus of Leibnitz. It makes use 
of the conceptions of the doctrine of limits in place of fic- 
titious infinitesimals of different orders. See calculus, 
3, di/erential, and limit. Second fluxion, the rate of 
change of the rate of change of a variable quantity ; the 
second differential coefficient relatively to the time : de- 
__,. . ,, -j!i_ siui'iiu uutereiiLini LUCIIH;ICIIV icmm^ij nj mo i 
3f. To clear or clean out by or as if by an noted by two dots over the symbol of the fluent, 
evacuation ; relieve by purging, literally or fluxional (fluk'shon-al), o. [< fluxion + -al.~\ 
figuratively. 
Twas he that gave our nation purges, 
And fluxed the House of many a burgess. 
S. Butler, Hudibras, II. i. 362. 
4. To melt ; fuse ; make fluid. 
One part of mineral alkali will flux two of siliceous 
earth with effervescence. Kiruan. 
II. intrans. To flow or change. [Rare.] 
The invading waters . . . fluxing along the wall from 
below the road-bridge. R. D. Blackmore, Lorna Doone, i. 
There is a mystery about it which has not yet been pen- 
etrated that monarchy should be so universal and inde- 
feasible in the East, while in the West it has been so flux- 
ing and unstable. J. Hadley, Essays, p. 865. 
;< flux + -at ion.} 
ux. 
fluxation (fluk-sa'shon), . 
A flowing or passing away ; 
, are entirely independent of the 
Gill, Proc. Biol. Soc., 1885, II. 30. 
The marine realms 
fluvio-terrestrial. 
flux (fluks), 11. and a. [< ME. flux, tilsoflix (see 
flix 2 ), a flow, flood (of the tide, and in medical 
senses), < OF. flux, F. flux = Sp. Pg. fluxo = It, 
flusso, < L. fluxus, a flow, a flowing, < fluere, 
pp. fluxus, flow: see fluent. Cf. flush (in 
cards), a doublet of flux.} I. n. 1. The act of 
They [the Siamese] believe a continual fluxation and 
transmigration of souls from eternity. 
C. Leslie, Short Method with Deists. 
fluxibility (fluk-si-bil'i-ti), n. [= Sp. fluxibili- 
1. Subject to flux" or'change ; variable; incon- 
stant. [Rare.] 
The merely human, the temporary and fluxional. 
Coleridge. 
2. In math., pertaining to or solved by the 
method of fluxions Fluxional or fluxionary cal- 
culus or analysis, the method of fluxions (which see, 
under fluxion). Fluxional equation. See equation. 
fluxiohary (fluk'shon-a-ri), a. [= F. fluxion- 
naire; s.s fluxion + -ari/.} Same as fluxional. 
The skill with which detention or conscious arrest is 
given to the evanescent, external projection to what is in- 
ternal, outline to what is flvxionarti, and body to what is 
vague all this depends entirely on the command over 
language, as the one sole means of embodying ideas. 
De Quiticey, Style, iv. 
fluxionist (fluk'shon-ist), H. [< fluxion + -ist.} 
One skilled in fluxions. 
Whether an algebraist, fluclioniit, geometrician, or dem- 
onstrator of any kind can expect indulgence for obscure 
principles or incorrect reasoninps. 
Bp. Berkeley, Analyst, Query 43. 
dad = Pg. fluxibilidade = It. flussibilita, < ML. fluxion-Structure (fluk'shon-struk^tur), . 
fliu-ibilita(t-)s, < fluxibilis, fluxible: see fluxi- Same asflitidal structure. Seefluidal. 
Me.} The quality of being fluxible, or admit- fluxivet (fluk'siv), a. [< L. fluxus, pp. of fluere, 
ting of flux or change; specifically, the quality flow, + -4ve.} Flowing; wanting substance or 
of being fusible ; fusibility. solidity. 
