Didelphyidae, Didelphidae (dl-del-fi'i-de, di- Didunculidse (dVdnMr-Wli-dS), . pi. 
del'ti-de), . ]>l. [XL,., < Ihdrliihijs + -idn-.\ < IHdiiHculu* + -iiln:'} A family of col 
: - 1 : 1 ~- *i.-' jj s> birds, represented ly the i^enus IHttmit 
t us Didunculinae (di-duug-ku-li'ne), . \>\. 
*"''! < Didinicitliin + -iiirt'.J A subfamily oi . ./,,,.- , ls ,/,>/ VH ,; B ,O MJ . 
"IK bida-, represented by the genus Didunculug. didynamous (di-din'a-inus), a. [< 
for DidunculuS (di-dung ku-lus), . [NL.,dim. of BamlW) < u r . ,),. ( two^, + r!wap<f, ] 
Didelphyidae 1005 
. [NL.. 
columbine 
A family of marsupial animals; the opossums, birds, represented by the , 
They have the fri-l pedlmalloll-. that K tin Ililnl tcct :is DidUHCU.liliaB (di-dUUg-ku-li'ne), . pi. [NL., 
well as the foiv with nil appo,uble thumb, :md tliustltU-d < DillllHCllllw + -intt:] A Subfamily of Coluill- 
fur ura.^i'in^; iill the tucs clawed excepting the hallux; 
the tail generally l"ii, scaly, and prehensile; and t' 
pouch in some form.-, i plrte, in others riullmeiitary , . . - 
wanting. The dental formula is: 5 incisors in each up- Didim t (he geni-i-ir iiiinif of the dodo. See Di- 
,,,,. i in ,-arh lower half-jaw ; 1 canine, :i prcmolar* ami , , A remarkable genus of pigeons, consti- 
4 molars in each half-Jaw. The vertebral fui niiil.i i- cei 
viral 7, dnrsal 13, lumbar <!, sacral 2, caudal 111 or mure. 
The family is routined to Vine rim. IH-IV it alonr repre- 
sents the division of marsupial mammals. The h-ailm--' 
genera are It,, I. fffiiift, including most of the species, and 
Chinmectet, the water-opossums. See Didelpkyi, oponnim, 
Didelphys (di-del'fis), . [NL., < Gr. it-, two-, 
+ tk/jpi'f, womb.l The typical and leading ge- 
nus of marsupial implacental mammals of the 
family l)idi-li>lnii<i<r, containing the American 
opossums which are not web-footed. The genus 
formerly covered nearly or quite all the marsupials. The 
species are terrestrial and arboreal, but not aquatic, the 
water-iipiissiiiiis being separated under the name Cniro- 
nectet. The pouch is usually well developed, as ill the 
best-known species, D. mryiniana, the common OIKISSIIIII 
of the United States, but is rudimentary in some of the 
South American forms. See Didelphyulir, OJUIXXIHH. 
Didemnidae (di-dem'ni-de) ; n. pi. [NL., < Di- 
demnuin + -idrt'.] A family of compound as- 
cidiaus, typified by the genus Dideiunum, hav- 
ing the body divided into thoracic and abdom- 
inal portions, and the viscera mostly situated 
behind the branchial cavity. 
Dideiunum (di-dern'num), n. [NL., < Gr. ft-, 
two-, -t- (?) tV/tvtov, a bed.] A genus of ascidi- 
ans, of the family Botryllidte, or made the type 
of a family Didetnnidai. D. candidum is an ex- 
ample. 
Dididae (di'di-de), n. pi. [NL., < Didus + -ida-.] 
A family of birds of which the dodo is the type. 
The leading genera are Didus and Pezophnps. 
See dodo. 
die 
Inclosed In an obvloutt aee<l-vee.. The first 
in"- 1 <>f the Labiatcr and \'erbenac4& t the hitter many 
I Q, 
tlidynamian, didynamic (did - i - na ' mi - an, 
-iKiin'ik), a. [< hnlyunmia 4- -rt/t, -ic.] Balm; 
NL. *,//</- 
. or. 
Tooth-billed Pigeon > niiiuneulus slrifimtrit). 
The genus is also called Gtiathttdon, from the denticula- 
tion of the lower mandible. The tooth-billed pigeon of 
the Samoan islands, D. ttriyiroetris, is the only species ; 
it is already a rare bird, and is likely to become extinct. 
The color is blackish : the total length is about 14 inches ; 
the beak, besides being biothed, is remarkably large anil 
strong, with a very convex culmen, like that of a bird of 
didine (di'din), a. [<NL.didin.9, </>id.v,q.v.] prey. 
PertainiugtothegenusDtoforfamily7>irf*B; Dldus(di dus),n. [NL., Latinized form of dodo, 
altered to give it a classical look, as if after 
-Ddo, the mythical foundress of Carthage: see 
<*xto.l The typical genus of Didtdte, coutain- 
mg the extinct dodo of Mauritius, D. ineptu*. 
being or resembling a dodo. 
didn't (did'nt). A contraction of did not, in fre- 
quent colloquial use. 
dido (di'do), . [ME. dido; in allusion to the 
familiar tnlo nf Ain rripk nlnvprl hv T>utn th The Keral character of the genus is columbine or pi- 
lamiiiar tale or tfie tricn playea Dy UMO, w i geon . llke but thc size was comparatively enormous, tlie 
legendary queen of Carthage, m bargaining for 
as much land as could be covered Dy a hide, 
body massive and unwieldy, the wings unlit for flight, and 
the beak stout and hooked. The genus has become ex- 
and cutting the hide into a long thin strip so tlnct since I860. See dodo. 
as to inclole a large tract: L. Ditto, Gr. Ato.] Dldymic comma. See comma 5 (b). 
It Auoldstorv didymium (di-dim'i-um), n. [NL., < Gr. atfvftof, 
double, twofold, t win : see didymous.] 1 . Chem- 
" This is a Dido, quath tills doctour, "a dlsours tale! - - '.._'. 
Fieri Plowman (C), xvl. 171. 
ical symbol, D or Di. A supposed element an- 
nounced by Mosander in 1841, so named from 
2. A caper; a prank; a trick To cut a dido, to being, as it were, the twin brother of lantha- 
1M-I 1. i. lin^i-ll i.'f Tlfuv H nr:L Ilk - I>11 1. A Pn**I- f 1 Jt . J 1 Al. _ 
make mischief ; play a prank ; cut a caper. 
teeth, and cuttiV didoes at a private concert. 
llaliburtOH, Sam Slick 111 Eug. 
didodecahedral (di-do'dek-a-he'dral), a. [< 
di-* + dodecahedral.] In crystal., having the 
form of a dodecahedral prism with hexahedral 
bases. 
didopper (did'op-er), 71. Same as didapper. 
didrachm (di'dram), n. [< didraclima, q. v.] 
A silver coin of ancient Greece, of the value of 
two drachmas. See drachma. 
Their [earlier coins of Corcyra's] reverse-type is, in the 
case of didrachtiut, two figures of square or oblong shape, 
whereof one has in the midst a small square and the other 
a small rhombus or lozenge. Unmix. Chron., 3d SIT. . I. U. 
Before the age of Solon, Aeginetan didrafhm* averaging 
about 194 grs. would seem to have been the only money 
current in Attica as in Bwotia and Peloponnesus. 
I!. V. Head, Ilistoria Numorum, Int., p. xlli. 
. ' , didynam (did'i-nam), n. A plant of the class 
didrachma (di-drak'ma), 71. [LL., < Gr. gfpax- oi,i,7nal,,ia 
,10V, a double drachm; <<?<-, two. + tpaxrf, a Didynamia (did-i-na'mi-a), n. pi. [NL. (so 
drachm: see drachm.] Same ap ''"*""'"' 
didrachmon (di-drak'mon), n. 
i didrachm. 
Same as di- 
drnfhm. 
didst (didst). The second person singular of the 
preterit of do 1 , do 2 , 
diducementt (di-diis'ment), n. [< "diduce (< L. 
diduetre, draw apart, separate, < di-, din-, apart. 
+ dun-re, draw; cf. deduce) + -ment.] Adraw- 
ingapart; separation into distinct parts. ttani. 
diductiont (di-dnk'shon), H. [< L. dideo(n-), 
< didun'ri: pp. didurtus, draw apart : see diduw- 
mi'itt.] Separation by withdrawing one part 
from the other. 
Those [strings] that within the bladder drew so as to 
hinder the didnclmn of its side. Boyle, Works, I. Itifi. 
diductivelyt (di-duk'tiv-li), dr. By diduction 
or separation; inferentially. 
There is scarce a popular error passant in our dayes 
uhich is not either tlirei Il> e\pres.-eil tn <lulnctiivlti ron- 
tained in this work [I'liny's Natural History). 
air T. lima;,,', \'ulg. Err., I. 8. 
power. 
In hot., in two unequal pairs: ap- 
j . plied to flowers having four stamens in two 
tuting the subfamily l>nl,<n<'uhnas of the family unequa i f a.vr, as most Labiate, etc. ; Bpecifieal- 
('iiliiniiiiiln; or made the type of a different j.. beUra^jng to the elass ]>i</i/,i,n,nii. 
family, DiMHMMNrte. It is considered to 1* the near- di'dynamy (di-<lin'ii-mi), 71. [<NL. didynamia, 
est livfug repi-esentative of the dodo, whence the name. < f uillgH * muil . M ^ didynamous.] In hot., tile 
^F^r- condition of being in two unequal pairs, as sta- 
I I/ ^l^Q meus. 
(jf, _^ftU die 1 (di), t). j pret. and pp. died, ppr. dying. 
[Early mod. E.also dye (ana dial., Sc., etc., duV, 
< ME. dien, dyeii. deien, deyen, dcijhen, degen, 
digett, etc. (not in AS., where 'die' was ex- 
pressed by sweltan (see stcelt) or steorfan (see 
starve) ; but the derived forms dead, dead, and 
death, death, occur), < Icel. dcyja (strong verb, 
pret. do, pp. ddin) = Goth. "diican (strong verb, 
pret. *<lntt, pp. iliirnim, found only as an adj. 
used as a noun, thata diwano, the mortal, mor- 
tality, and in deriv. UTtdiwanei, immortality); 
the other Teut. forms are weak: Norw. do'ya = 
8w. do = Dan. do = OS. doian = OHG. MHG. 
touwen, die (cf . Goth, af-daujan, harass, distress, 
OFries. deia, deja, kill), < Teut. -^ *dau, whence 
also ult. E. dead and death, q. v. Cf. OBulg. da- 
viti = Bohem. daviti = Russ. dat-itf, choke, = 
Lith. dwiti, plague, vex.] 1. To cease to live ; 
lose or part with life; expire; suffer death; per- 
ish : said of sentient beings, and used absolutely 
(as, all must die), or with of, by, or from, to ex- 
press the cause of death, or with/or to express the 
object or occasion of dying: as, to die of small- 
pox, or by violence ; to die for one's country. 
There dycde Seyiite Johne, and was buryed liehynde the 
highe Awtlere, III a Toumbe. MatuleviUe, Travels, p. 22. 
Christ died for our sins. 1 Cor. xv. S. 
And what we call to die, is not to appear 
Or be the thing that formerly we were. 
Dri/dni, Pythagorean i'hilos., L 392. 
" Whom the gods love die young," was said of yore. 
Byron, Don Juan, iv. 12. 
Every individual eventually dies from inability to with- 
stand some environing action. 
//. Spencer, Study of Sociol., p. S38. 
2. To lose vital power or action ; become de- 
vitalized or dead: said of plants or parts of 
plants, as a decayed tree or a withered limb or 
stem : as, certain plants die down to the ground 
annually, while their roots live. 3. To sink; 
faint. 
Bis heart died within him, and he became as a stone. 
1 Sam. xxv. 37. 
Hence 4. To come to an end or come to no- 
thing; cease, or cease to exist; perish; be lost. 
When I look upon the tombs of the great, every emotion 
of envy diet in me. 
.II/I//MI/I, Thoughts in Westminster Abbey. 
Whatever pleasure any man may take In spreading whis- 
pers, he will Hud greater satisfaction by letting the secret 
die within his own breast. Spectator. 
Nothing died In him 
Save courtesy, good sense, and proper trust, 
Browning, Ring and Itook, II. 130. 
5. To come to an end gradually ; become ex- 
tinct by degrees ; vanish by or as if by death : 
usually with away, out, or down. 
For 'tis much if a Ship sails a Mile before either the 
Wind dyti wholly away, or at least shifts about again to 
the South. Dampier, Voyages, U. iii. 6. 
So gently shuts the eye of day ; 
So diet a wave along the shore. 
Mr: Barbauli, Death of the Virtuous. 
There, waves that, hardly weltering, die away, 
Tip their smooth ridges with a softer ray. 
Wordsworth, Evening Walk. 
The living airs of middle night 
l>itd round the bulbul as he sung. 
Tennymn, Arabian Nights. 
The system of bribery did not long survive the ministry 
of lord North. It may not have wholly died out ; and has 
probably since been resorted to on rare and exceptional 
occasions. Sir E. May, Const Hist. Km;.. I. vi. 
In the course of his ten years' attendance, all the Inmates 
died out two or three times, and were replaced by new 
ones. O. r. Ilolma, Old Vol. of Life, p. 2. 
6. To become less and less subject to, or cease 
to be under the power or influence of, a thing: 
followed by to or unto: as, to di to sin. 7. 
To languish with affection or love. 
The young men acknowledged that they died for Re- 
Tatler. 
8. To bo consumed with a great yearning or de- 
sire; be very desirous; desire keenly or great- 
ly: as, she was just dyin^ to go. [Colloq.] 
num. previously discovered in the same min- 
Them Italian singers recitin' their jabber, showin' their grals which yielded didymium, and from whose 
compounds those of didymium are separated 
with much difficulty. The most recent Investigations 
indicate that didymium is not an element, but a mixture 
of several different elements. 
2. [cap.] A genus of fungi belonging to the 
Myxomycetes. The sporangia have a double wall, 
which is covered externally with crystals of lime, either 
scattered or compacted into a separable crust. 
iidymous (did'i-mus), a. [< Gr. ildvpoe, double, 
twofold, twin, < at-, two-, + ii'O, = E. two, + 
suffix -/iof.] i. In bot., twofold; twin; grow- 
ing double, as the fruits of umbelliferous plants, 
the anthers of bedstraw, or the tubers of some 
orchids. 2. In zool., twain; paired: applied to 
two spots, spines, tubercles, etc., when they 
form a pair touching each other Dldymous 
wing -cell, in entoin., a wing-cell almost but not quite di- 
vided into two by a projecting short nervure. 
named because the two larger stamens appear 
to dominate over the shorter), < Gr. it-, two-, + 
6i<vamt, power : see dynamic.] The fourteenth 
e, 
A 
class in the 
Linnean veg- 
etable sys- 
tem, includ- 
ing plants 
with four sta- 
mens in un- 
equal pairs. 
It was divided 
by Linnaeus in- 
to two orders : 
havini: the fruit 
composed "f .-.in- 
ulr-sce.ied ache- 
lies, which he 
mistook for na- 
ked seeds ; and 
A /i'/''"^" 1 '"'""'. 
with many seeds 
Diilynamous Flowers. 
A. Angtospermia ( Tftttrium 5cen*&>Hia : 
c, stamens; rf. divided ovary; t, ^ 
ovary. K. Gymnaepermia : .-/itrirr-AmMm 
tnaJMS}: c, stamens ; J, capsule : t. section of 
capsule. 
