D I A 
D I A 
78 6 
be the place where the prophet Jeremiah was buried, 
near Cairo. 
DEZ'KAK, a town of Perfia, in the province of Se- 
geftan : no miles eaft-north-eaft of Zareng. 
DFJE'FAN, a town of Arabia, in the country of Ye¬ 
men, fituated on the coaft of the Red Sea: twenty-two 
miles weft of Abu-Arifch. 
DGI'ARON, a town of Perfia, in the province of Far- 
fiftan : eighty-four miles foutli of Schiras. 
DHA'FAR. See Dafar. 
DHAR, a town of Hindooftan, in the,country of Mal- 
wa : forty-two miles weft of Indore, and thirty-fix fouth- 
fouth-weft of Oudein. 
DIIARM'SALEH, a town of the country of Thibet: 
fixty miles from Sarangpour. 
DHOOL'POUR, a town of Hindooftan, in the country 
of Agra: thirty-two miles louth of Agra. 
DfiUL, a lake of Afia, in the country of.Cafhimere: 
five miles north-eaft of Cafliimere. 
DI'A, a Greek prepofition, (ignifying through, in, or 
between, often joined to the names of phyfical compoli- 
tions, w ith that of the principal ingredient, as diafeordium, 
&cc. 
DIABE'TES,/. [from ha€aii/u, to pafs through]. An 
excellive difcharge of crude urine, generally exceeding 
the quantity of fluid which is drunk. For its cure, fee 
the article Medicine. 
DIABE'TICAL, adj. Troubled with, or belonging 
to, a diabetes. 
DIABO'LIC, or Diabolical, adj. [from diabolus, 
Lat.] Devilifti ; partaking of the qualities of the devil ; 
impious; atrocious; nefarious; pertaining to the devil. 
—Does not the ambitious, the envious, and the revenge¬ 
ful, man know very well, that tha third of blood, and 
affedtation of dominion by violence and oppreflion, is a 
mod diabolical outrage upon the laws of God and nature t 
L’ Ejlrangc. 
This, in other beafts obferv’d, 
Doubt might beget of diabolic pow’r, 
Active within, beyond the fenfe of brute. Milton. 
DIACATIIO'LICON, f. [JiaxaOoAuca?, from ha, and 
xxdohiy,oi, univerfal.] The term given by phyficians to a 
purge, fo called from its,general ufefulnefs. 
DIACAU'STIC CURVE,/. A lpecies of the cauftic 
curves formed by refraction. 
DI'ACHER, a town of Perfia, in the province of Ma- 
zenderan : twenty-four miles fouth-weft of Zaweh. 
DIACHRIS'TICS,/ [^i xpr^crlx, from hx, and 
to anoint.] Medicines to anoint fore or bruiled parts.’ 
DIA'CHYLUM,/. \_oixxy7\uv, from hx, and j/vAo?, 
juice.] A well known plafter, formerly made of certain 
juices ; but it now means an emollient digeftive plafter. 
DI ACHY '1 ICS,/. [ hxpevhy-a [ , from hx^/vu, to dif- 
folve.] Medicines which difeufs and diflolve tumours. 
DIA'CODIUM,/. [from hx, and y.uhx, a poppy 
head.] A fyrnp made of the heads of the poppy. 
DIA'CONAL, adj. Of or belonging to a deacon. 
DI A'CONATE,/! [from the Greek hxy.ovoe, a dea¬ 
con.] The office of a deacon. 
DIACOSME'SIS, f. [from the,Greek hx, through, 
and y.oxxtw, to adorn.] A proper diftribution of things ; 
the aft of letting things in order. Scott. 
DI ACOU'STIQ, adj. [from the Greek ha, through, 
and xy.au, to hear.] Belonging to the fenfe of hearing. 
DIACOU'STICS, f. called alfo Diafhonics ; the 
dodtrine or fcienceof refracted founds. See Acoustics. 
DIA'CRESIS, f. [otazpicr l? , Gr.] A judging of and 
diftinguifhing difeafes, with their refpeftive fymptoms. 
DIA'CRII,/ In antiquity, the name of a celebrated 
faftion at Athens. 
DIADEL'PHIA,/i [from he, twice, and xh\(poe, a 
brother.] In botany, the name of the feventeenth clafs 
in Linnaeus’s 1 Artificial Syftem, comprehending thofe 
.plants which bear hermaphrodite flowers, with two fets 
of united ftamina. This is a natural clafs, with papilio¬ 
naceous or pea flowers, and leguminous fruits. It is 
nearly the fame with the papilionacei of Tournefort ; the 
irregulares tetrapetala of Rivinus ; ' and the leguminofa ot 
Ray. The orders are founded on the number of the 
ftamina, and ten being the predominating number in this 
clafs, the order decandria is much the largeft. The regu¬ 
lar difpofition of the ftamina in this order is, nine united 
in one brotherhood, the lower broad part of the filament 
flieathing the germ, and the tenth Angle ; but, in almoft 
twenty genera, the ten ftamina are connedted into one 
body at the bottom. See Botany, vol. iii. p. 256, &c. 
DI'ADEM,/. \_diadema, Lat.] A tiara; an enfign or 
royalty bound about the head of eaftern monarchs : 
The facred diadem in pieces rent, 
And purple robe gored with many a wound. Spenfcr. 
The mark of royalty worn on the head ; the crown : 
A crown, 
Golden in fhew, is but a wreath of thorns: 
Brings dangers, -troubles, cares, and fleeplefs nights, 
To him who wears the regal diadem. Milton. 
A device in heraldry, which fee. 
DI'ADEMED,#/. Adorned with adiadem ; crowned : 
Not fo, when diadem’d with rays divine, 
Touch’d with the flame that breaks from virtue’s fliririe. 
Her prieftlefs mufe forbids the good to die, 
And opes the temple of eternity. Pope. 
DI'ADROM,/. [hao^of/.Eu, to run through.] The time 
in which any motion is performed ; the time ih which a 
pendulum performs its vibration.—A gry is one-tenth 
of a line, a line one-tenth of an inch, an inch one-tenth 
of a philofophical foot, aphilofophical foot one-third of 
a pendulum ; whole diadroms, in the latitude of forty- 
five degrees, are each equal to one fecond of time, or a 
fixtieth of a minute. Locke. 
DIZERE'SIS,/. [from haigEcry.u, to divide.] Tnfurge- 
ry, an operation ferving to divide any part, whofe conti¬ 
nuity is a hindrance to the cure. In medicine, it is the 
confuming of the veflels of an animal body, when, from 
fome corroding caufe, certain paffages are made, which 
naturally ought not to have been, or certain natural paf¬ 
fages are dilated beyond their ordinary dimenfions, fo 
that the humours, which ought to have been contained 
in the velfels, extravafate or run out. In grammar, it is 
the divifion of one l’yllable into two, which is ufually 
noted by two points over a letter, as auldi, inftead of aula, 
dijfoliicnda, for dijjolvenda. 
DIAsRE'TICS,/ [Gr.] Medicines.which corrode and 
eat. 
DIZETE'TAL, f. In Grecian antiquity, a kind of 
judges, of which there were two forts, the cleroti and dia- 
ledterii. The former were public arbitrators, chofen by 
lot to determine all caufes exceeding ten drachms, within 
their own tribe, and, from their fentence, an appeal lay 
to. the fuperior courts. The dialedterii, on the contrary, 
were private arbitrators, • from whofe fentence there lay 
no appeal, and accordingly they always took an oath to 
adminifter juftice without partiality. 
DIZETE'L IC,/. [haiTr,Tiy.ri, Gr.] A part of phyilc 
which preferibes the ufe and knowledge of the rules of 
diet, or of the (ix non-naturals. 
DIA'FERI, a town of Perfia, in the province of Cho- 
rafan : 135 miles north of Herat. 
DI AGJLY'PHICE,/ The art of cutting or engraving 
figures on metals, fuch as feals, intaglios, matrices of 
letters, coins for medals, &c. 
'DIAGNO'SIS,/. [from hxyvuav.u, to difeern or dif- 
tinguifli.] The diferi urination or judgment of a difeafe 
by its figns or fymptoms. In botany, the aiagnofis of a 
plant confifts in the affinity of the genus, and the diffe¬ 
rence or diftindlion of the fpecies. The fpecific cha- 
radters in the Species Plantarum, Syjlema Vegetabilium, and 
other works of Linnaeus, are true diagnofes. 
DIAGNQS'TIC. 
