dialing 
over one another n]mn a movable horizon, serving to dem- 
onstrate the nature ni *[>(n i H al 1 11:1 rifles, as well at* to give 
UK: trili- idea ot iliauin^' ilial* on all sorts of planes. 
dialist (di'al-ist), . [( '''"' +-*<] A con- 
structor of'ilials; <m<> skilled ill dialing. 
Scientiiiek ilinlisii, by tin- uemnetriek e< moderations of 
lines, have found out rules to murk out tin- irregular mo- 
tiu of the shadow in all latitudes, and on all planes. 
J. Muxon, Mechiuiick Dialling. 
diallage (di-al'a-je), H. [NL. , < Gr. diaMayi/, in- 
tcTi'liiiiiKu, a cliauge, difference, < itaUaooeiv, 
inti'ivliiinge, change, make different, < 6i&, be- 
tween, + oAAdmTfip, change, < &Uof, other.] 1. 
In rliet., a figure of speech by which arguments 
are placed in various points of view, and then 
brought to bear all upon one point. 2. A va- 
riety of pyroxene, commonly of a green color, 
characterized by its lamellar or foliated struc- 
ture. As formerly used, the term covered me- 
talloidal diallage or brouzite, also schillerspar 
and hypersthene. 
diallelt (di'a-lel), a. [< Gr. <5<<i^/oc, through 
one another. < 6ia, through, + a'AJir/huv, gen. pi., 
of one another. See parallel.'} Meeting and 
intersecting, as lines; crossing; not parallel. 
E. Phillips, 1706. 
diallelon (di-a-le'lon), n.; pi. diallela (-la). 
[< Gr. SuiMiitov, neut. of itdUt/Mf see diallel, 
tliiillclus.] In Ionic, a tautological definition; 
a definition which contains the word defined; 
the definition of a term by means of another 
which is itself defined by means of the first ; 
definition in a circle. 
The anelents called the circular definition . . . by the 
name of diallelon, as in this case we declare the deflnituni 
and the detliiicns reciprocally by each other (6t' aXAijAwc). 
Sir W. Hamilton, Logic, xxiv. 
diallelous (di-a-le'lus), a. [< Gr. <5i;U<7?.or, 
through one another : see diallel, diallelus.] In 
logic, involving the fallacy of reasoning or de- 
nning in a circle that is, the proving of one 
position by assuming another identical with it, 
or defining two things each by the other. 
diallelus (di-a-le'lus), n. ; pi. dialleli (-11). [NL., 
< Gr. (5<d/.A;//lof, through one another; diaUjjfof 
rpoVof, argument in a circle: see diallel.'] In 
logic, a circle in proof; an attempt to prove one 
proposition ' by another which is itself proved 
only by the first. 
The proposition which we propose to prove must not be 
used as a principle for its own probation. The violation 
of this rule is called the . . . dtalielus. 
Sir W. Hamilton, Logic, xxvi. 
dialler, dialling. See dialer, dialing. 
dial-lock (di'al-lok), n. A lock provided with 
one or more dials, each with a hand or pointer 
connected with the mechanism of the lock in 
such a way that the bolt will not move unless 
the hands are set in a particular manner. 
diallogite, . See dialogite. 
diallyl (dl-al'il), n. [< <JM + allyl.] See allyl. 
dialogic, dialogical (di-a-loj'ik, -i-kal), a. [=r 
F. diuloyique = Pg. It. dialogico, < Gr. Siakoyutos, 
< iid^oyof, discourse: see dialogue.] Pertain- 
ing to or partaking of the nature of a dialogue ; 
dialogistic. Burton Dialogic method, the meth- 
od of the Hocratic dialogue, in which the teacher asks the 
learner such questions as to direct his understanding to 
the recognition of the truth. 
dialogically (di-a-loj'i-'kal-i), a*'. In the man- 
ner of a dialogue ; dialogistically. Goldsmith. 
dialogism (di-al'o-jizm), n. [= P. dialogisme = 
Sp. Pg. It. dialoijismo, < LL. dialogismos, < Gr. 
<!jAo}7//(5f, consideration, < 6iahoyi$ea6ai, con- 
sider, converse: see dialogic.] 1. In rhet. : 
(a) Deliberation or discussion with one's self, 
as in soliloquy, of what course to pursue. (6) 
Introduction into an oration of two or more 
persons as engaged in dialogue. 
Enlnrgin;.' what they would say by !>old and unusual 
metaphors, by their ilialogimu and colloquies. 
D. Stokes, Twelve Minor Prophets, Pref. (1659). 
2. A necessary inference having a single pre- 
mise and a disjunctive conclusion : as, Enoch 
and Elijah did not die ; hence, either Enoch 
and Elijah were not men, or some men do not 
die. 
dialogist (di-nl'o-jist), n. [= P. dialogic = 
Sp. ditiliMjuintti = Pg. It. dialogista, < LL. dialo- 
i/ixta, < Gr. "AoAoj-ttnv/f, a converser, < iiatoyl- 
Cj0a/, converse: see dialogize.] 1. A speaker 
in a dialogue. 
The like doth Cioero assert in many places, sometimes 
in the persons of his dialoffists, sometimes according to his 
own sense. Harrow, Sermons, II. viii. 
2. A writer of dialogues. 
I am very fur frmn emieeiteilly insinuating that this 
i/////o,/ f .v7 is tile only person who hath managed the dis- 
pute 1 speak of with candour. 
P. Sketton, Deism Revealed, Pref. 
1591 
dialogistic, dialogistical (di'a-lo-iis'tik, -ti- 
kal), a. [< ilinliii/iKt + -if, -ifiil.] Having the 
form of a dialogue ; consisting in dialogue. 
dialogistically (di'a-16-jis'ti-kal-i), adv. In the 
manner of a dialogue. 
In his prophecy, he IMalachi] proceeds most dialogiiti- 
ealli/. Up. hichardwn, Observations on Old Test., p. 449. 
dialogite (di-al'o-jit), n. [< Gr. Siatoyri, doubt, + 
-ite'l. ] A mineral of a rose-red color, which crys- 
tallizes in rhombohedrons and related forms, 
and also occurs massive with rhombohedral 
cleavage. It is a carbonate of manganese. 
Sometimes erroneously spelled diallogite. Also 
called rhodochrosite. 
dialogize (dl-al'o-jlz), v. i. ; pret. and pp. dialo- 
gi:ea, ppr. dialogiztng. [= P. dialogiser = Sp. 
dialogizar = Pg. dialoaisar = It. dialogizzare, < 
Gr. oWoy/fffffai, consider, converse, (dtdfoyoc, 
a conversation, iiafarrf, a conversation, enu- 
meration: see dialogue.] To discourse in dia- 
logue. Also spelled dialogise. Richardson. 
dialogue (di'a-log), n. [< ME. "dialoge, mis- 
written dialo'ke, = D. dialoog = G. Dan. Sw. 
dialog, < P. dialogue = Sp. didlogo = Pg. It. dia- 
logo, < L. dialogue, < Gr. oidfoyof, also oia^oyi/, a 
conversation, dialogue, < duMyeaOat, converse : 
see dialect.] 1. A conversation between two 
or more persons ; a colloquy ; a talk together. 
So pass .1 in pleasing dialogue away 
The night ; then down to short repose they lay. 
Pope, Odyssey, xv. 
Specifically 2. A literary work in the form of 
an imaginary conversation or discussion (a) 
Used as the means of conveying views or opin- 
ions: as, the Dialogues of Plato. 
The [Grecian] philosophers adopted the form of dialoyue, 
as the most natural mode of communicating knowledge. 
Macaufay, History. 
(6) Used as part of a play to be acted, or to be 
spoken as a school exercise, 
dialogue (di'a-log), . ; pret. and pp. dialogued, 
ppr. dialoguing. [< dialogue, n.J I. intrans. 
To discourse together; converse; talk; confer. 
Var. Sen. How dost, fool? 
Apem. Dost dialoyvt with thy shadow ? 
Var. Sera. I speak not to thee. SAot., T. of A., it 2. 
II. trans. To express as in dialogue ; put in 
the form of a dialogue. 
And dialogued for him what he would say, 
Ask'd their own wills and made their wills obey. 
Shak., Lover's Complaint, 1. 132. 
Dialonian (dl-a-16'ni-an), n. [< Dial (see dcf.) 
+ -onian, as in Babylonian, etc.] An inhabit- 
ant of the Seven Dials, a locality in London 
long noted for its misery and crime. 
The editors of the " Times " and the " Dally News" . . . 
should know those who can tell them what the Dialoniatts 
feel and what the outcasts in the New Cut suffer. 
Contemporary Rev.,L. 670. 
dial-plate (di'al-plat), n. 1. The plate of a 
dial, on which the lines are drawn to show the 
hour or time of the day. 2. The face of a 
clock or watch, on which the time of the day is 
shown. 3. Any kind of index-plate. 
dial-resistance (dt'al-re-zis'tans), n. In elect. , 
a set of resistance-coils arranged in the cir- 
cumference of a circle, so that they may be 
thrown into the circuit by moving an arm at- 
tached to the center of the dial. 
dial-telegraph (di'al-tel'e-graf), n. A tele- 
graph in which the receiving and transmitting 
instruments have the letters of the alphabet ar- 
ranged on the circumference of a circle. The 
mechanism is so arranged that when a movable Index on 
the transmitter points to any letter, the index of the re- 
ceiver points to the same. 
dial-wheel (di'al-hwel), n. One of those wheels 
placed between the dial and the pillar-plate of 
a watch. Also called miuute-wheel. 
dial-work (di'al-werk), n. The motion-work 
of a watch between the dial and the move- 
ment-plate. 
dialycarpous (ili'a-li-kiir'pus), a. [< NL. *di- 
alyfarjiiis, irreg. < Gr. dial.veiv, separate, + xap- 
xof, fruit.] In hot., bearing fruit composed of 
separate carpels : same as apocarpous. 
Dialypetalse (dl'a-li-pet'a-le), n. pi. [NL., 
fern. pi. of dialypetalus : see dtalypetalous.] In 
hot., same as I'olypetate. 
dialypetalous (di'a-li-pet'a-lus), a. [< NL. 
dialyi>ftiilii.i. irreg. < Or. AaXtifiv, separate, + 
-im't.ov, a leaf (mod. bot. a petal).] In bot., 
same as polypctalous. 
dialyphyllous (di'a-li-fil'us), a. [< NL. dia- 
h//ilii/l!iix, irreg. < Gr. /5iaX'v, separate, + *t>A- 
2ov = L. folium, a leaf.] In bot., composed of 
separate leaves : applied to a polysepalous ca- 
lyx or a polypetalous corolla. 
diamagnetic 
dialysable, a. See dialyzabte. 
dialysate (<li-iiri-sat), . [(dialysis + 
In i-lif<., the product removed from a solution 
by dialysis. 
dialyse, c. t. See din' 
dialysepalons (di'a-li-sep'a-lus), a. [< NL. 
"iliiilyiiejialug, irreg. < Gr. iiaMetv, separate, + 
NL. sepalum, a sepal.] In but., having a calyx 
<< imposed of separate sepals; polysepaloua. 
dialyser, . See dialyzer. 
dialysis (dl-al'i-sis), n. [LL., a separation 
(rhet.), < Gr. 6ta).votf, a separation, breaking 
up, dissolution, dissolving, dialysis, < Stat.itti', 
separate, dissolve, < Sia, apart, + Aietv, loose, dis- 
solve. Cf. analysis, paralysis.] 1. Ingram. : (a) 
Division of one syllable into two; dieresis. (6) 
In Latin grammar, specifically, resolution of the 
semivowels j and (i. e., y and w) into the cor- 
responding vowels i and u respectively. 2. In 
rhet. : (a) Interruption of a sentence by a clause 
independent of it in construction ; parenthesis. 
(6) Succession of clauses without connectives ; 
asyndeton. Also called dialyton. 3. In anat., 
separation of parts in general ; dissolution of 
continuity of parts previously united. 4. In 
mcd., loss of strength; weakness of the limbs. 
5. In ehem., the act or process of separating 
the soluble crystalloid substances in a mixture 
from the colloid, depending on the principle that 
soluble crystalloid bodies will diffuse readily 
through a moist membrane, while colloids dif- 
fuse very slowly, if at all. This is done by pouriui! 
a mixed solution of crystalloid and colloid on a sheet of 
parchment-paper stretched over a wooden or gutta-percha 
hoop, having its edges well drawn up and confined by an 
outer rim. The parchment is allowed to float In a basin 
of water. Diffusion immediately commences, the crystal- 
loid passing through and dissolving in the water beneath, 
while the colloid remains behind. Thus, gruel or broth 
containing a very little arsenic dissolved in it gives up the 
whole of its arsenic to the water, while scarcely a trace of 
the organic substance passes through. As almost all the 
poisons in common use arsenic, corrosive sublimate, 
oxalic acid, lead acetate, morphia, and salts of strychnine, 
etc. are crystalloids, the toxicologist IB by this process 
furnished with an easy mode of delecting their presence, 
if they ore in a form readily soluble In water. 
6. leap.] [NL.] A genus of dipterous insects. 
Walker, 1850. 
dialytic (di-a-lit'ik), a. [< Gr. Sia.l.vrut*;, able to 
dissolve, < "ita).vrof, dissolved, verbal adj. of 
itaMciv, dissolve: see dialysis.] 1. Pertaining 
to or of the nature of dialysis, in any sense of 
that word. 2. In merf., unloosing; unbracing, 
as the fibers; relaxing. 3. In math., pertain- 
ing to the process of differentiating equations 
successively until the different powers of the 
unknown quantities can be regarded as inde- 
pendent. Dialytic elimination, In math., a method 
Invented by Sylvester, leading to the same result as 
Euler's method. It consist* in increasing the numl>er 
of equations by successively multiplying them by combi- 
nations of powers of the unknowns, until a system of 
equations is obtained from which the unknown factors 
of the different terms can lie eliminated as Indejiendent 
quantities, the equations being regarded as linear. 
Dialytic telescope, a telescope In which the flint-glass 
lens is brought down to aliout half the distance of the 
crown-glass lens from the eye. It was invented by Littrow 
in 1827, and constructed by Ploessl. 
dialyton (di-al'i-ton), n. [LL., < LGr. iifovrw, 
dialysis, orig. neut. of Gr. d(d?,wof, dissolved, 
separated: see dialytic.] In rhet., same as 
dialysis, 2 (6). 
dialyzable (di-a-li'za-bl), a. [< dialy:e + -able.] 
Capable of separation by dialysis. Also spelled 
dialysable. 
dialyze (di'a-llz), v. t. ; pret. and pp. dialyzed, 
ppr. dialyztng. [< dialysis, like analyze < analy- 
sis, after verbs in -ize, -ise,] In ehem., to sep- 
arate by dialysis. Also spelled dialyse. Dla- 
lyzed iron, a feeble chalybeate for medical use, consist- 
Ing of a solution of ferric oxychlorld In water. It is pre- 
pared by adding ammonia to a solution of ferric chlo- 
rid and dissolving the resulting precipitate by agitation. 
This solution Is then dialyzed tUl all crystalloid sails are 
removed. 
Dialyied iron has been Injected hypodermatically, but 
In some instances with the following of abscess at the 
site of puncture. 
liudc'i Handbook of Mcd. Science*, IV. 226. 
dialyzer (di'a-U-zer),n. l< dialyze + -eri.] Thfe 
parchment-paper, or septum, stretched over a 
wooden or gutta-percha ring, used in the opera- 
tion of dialysis. Also spelled dialyser. 
diamagnet (di'a-mag-net), . [As diamagnet- 
ic, after magnet.] A diamagnetic substance. 
diamagnetic (di'a-mag-net'ik), a. and n. [= 
F. diama<jnetique,"< Gr. An, through, across, + 
uayvtK (/layvirr-), magnet: see magnet, magnetic.] 
I. a. Pertaining to or exhibiting diamagnetism. 
II. A substance which is diamagnetic in 
a magnetic field of force. See rfii<i</ii< iixw, 1. 
