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VITREOTTSLY.
hiunoiir..in restoring the indolent form. 1831 R. Knox
Cloqttet's Anat, 559 The Vitreous Uody is a soft, perfectly 1
transparent, tremulous mass, occupying the three posterior
fourths jof the cavity of the ball of the eye. 1877 M.
Foster Phy^oi, 111. 11. (1878) 398 The rays of lij;ht traverse
in succession the cornea, the aqueous humour, the lens and
the Wtreous humour.
c. tiiipt, as sb, -I prec.
X869 G. Law-son Dis. Eye (1874) M4 He h.is succeeded in
thus extracting the lens without the loss of any vitreous.
1879 St. Ge^rg-fs Hasp. Rep IX. 479 A quantity of the thm
fluid Wtreous escaped.
3. Vitreous electricity^ positive electricity obtained
from glass ^y friction,
X759 Phil. Trans. LI. 308 Experiments.. respecting the
«treous and resinous electricities, as they are called. 1799
[see Electricity i bj. 1840 Carlyle Htrocs i. (1904) 18
Thunder was not then mere Electricity, vitreous or resinous.
i860 Emerson Ccnd, Life, Wealth Wks. (Bohn) II.
357 The genius of reading and of gardening are antagonistic,
like resinous and vitreous electricity. 1879 Proctor
Pleas, Ways Sc. xi. 238 If glass is briskly rubbed with silk
it becomes charged . . with positive electricity,formerly called
vitreous electricity for this reason.
4. Resembling that of glass ; characteristic of
18x1 A. T. Thomson Lond^ Dis^. (i8i8) 196 The tears
are. .brittle, and break with a vitreous fracture. 1841
Brande Chatty (ed. 5) 130 This change from the vitreous to
the crystalline state sometimes takes place suddenly. 1854
Ronalds & Richardson Chem, Technot. (ed. 2) I. 42 They
form a. -perfectly black mass, . . generally possessing a fatty
or vitreous lustre. 1863 A. C. Ramsay /"A/j. Geog. i. (1878)
3o Modern lavas have often a vitreous structure (glassy)
such as obsidian.
b. Having the colour or appearance of glass.
1874 R. Buchanan Fan Poet. Wks. I. 90 What time the
pallid sickle wax'd Blue-edged and vitreous o'er the blackning
West. x88j — Annan Water i. The vitreous rays of
the moon began playing on the window panes. 1900 B. D.
Jackson Gloss, hot. Terms, F//rtf^;«,. .transparent, hyaline;
formerly used for the light green of glass.
5. Comb.j as vitreous-like^ -shelled adj.
1879 Carpenter in Encycl, Brit, IX. 378/1 The vitreousshelled
Foraminifera constitute the most elevated division
of the group. 190a Westm. Gaz. 22 Sept. 6/3 Some of the
^ner wares will break showing a vitreous-like substance.
Hence Vi'treonsness.
17J7 Bailey (vol 11), and later Diets.
VitreOUSly (vi*tr/dsli), adv. [f. prec. + -lt 2.]
In a vitreous manner : a. With positive electricity.
1794 G. Adams Nat. ^ Exp. Philos. IV. xlvi. 264 Those
attracted by excited wax, are vitreously.. electrified. 1844
NoAD Electricity (ed. 2) g We are led to the inference
that the cloth is vitreously electrified. 1885 Watson &
BuRBtJRY Math. The. Etectr. ff Magn. I. 75 The outside of
the vessel will be found to be vitreously electrified.
b, Glassily ; like glass.
1904 HowELLS Son of Royal Langbrith 62 In the moonlight
Hawberk's face had a greenish hue, and his eyes shone
vitreously.
Vitresceuce (vitre*sens). [f, VlTUESCENT a, :
see -ENCE.] The slate of becoming vitreous or
glassy; vitrified or vitreous condition.
1796 KiRWAN Eleni, Min. (ed. 2) I. 279 Mineral alkali
promotes their [ic. zeolytes] vitrescence most, next borax,
microcosmic salt least. 1888 Encycl, Brit. XXIV. 264/1
The vitrescence was produced by beacon fires lighted
during times of invasion. 1903 /Itrart'rwy 24 Jan. 75/2 The
difficulty in most cases arises from the high vitrescence of
surface (of Chinese porcelain].
So Vitre-scency. rare,
1756 F. Home Exper. Bleaching 116 Their junction with
oils, and their vitrescency. 1847 H. Miller Rambles Geol.
(1858) 365 They are artificial structures, in which vitrescency
was designedly induced.
Vitrescent (vitrcsent), a. [f. L. vitr-um
glass + -ESCENT. Cf. It. vitrescente.'\ Tending to
become glass ; susceptible of being turned into
glass; glassy.
1756 P- Bro\vne Jamaica 48 They seem to be formed
chiefly of the vitrescent fluor, debased by a less agitated
or divided clay. 1767 Phil, Trans. LVII. 440 The stone
is of an extreme hardness, and almost a petrifaction ..
of many different stones^ but all vitrescent. 1778 Pryce
^lin, Cornub. 262 The nitre and tartar are.. rendered still
more vitrescent by the borax. 1825 J. Nicholson Oper,
Mech. 756 Iron ores.. require calcareous additions, and the
copper ores, rather slags or vitrescent stones, than calcareous
earth. 1855 tr. Labarte's Arts Mid, Ages viii. 289 A
vitrescent coating.
Vitrescible (vitre'sib'l), a, [f. L. type
*vitresc-ere io become glass -f-iBLE, or directly a,
¥» vitrescible {a 1^62), -lUvilrescibile, Pg. -ivel.']
That can be vitrified ; vitrifiable.
>754 HuxHAM in Phil. Trans. XLVIII. 841 Looselycombined
with the vitrescible earth. 1786 \Vi;dgwood /bid.
LXXVI. 400 This eff'ect is constant in certain clays, and
begins earliest in those which are most vitrescible. 1794
R. J. SuLiVAN /'Vrzt/ A'a^«r£ I. 45oTheybave likewise been
ranked among vitrescible stones. 1825 Hibbert in Trans.
Soc. Antiq. Scot. (1831) IV. 166 The interstices between
them being filled full of this vitrescible iron ore. x87»
Yeats Techn. Hist. Coium. 266 Vitrescible colours. .are
now laid on the glass, and burned into it.
Hence Vttreacibi'Uty. [Cf. F. vitrescibilitl'\
1786 Wedgwood in Phil. Tram. LXXVI. 401 Enabling
us to ascertain the degree of vitrescibilily of bodies that
cannot actually be vitrified by any fires which our furnaces
are capable of producing,
t Vi'trial, a. Obs. [f, L. vitr-um glass + -tal.]
x6os TiHHE Quersit.
glassy, vitreous.
1. xii. 50 Their fixed beauen, or
Composed of glass ;
j
264
vitriall and chrystalUne circles, is a salt body. i6o8Topsell
Hist. Serpents i6i As for the flesh, it is of a vitriall or
glassie colour. X609ARMIN Maids 0/ More-Cl. (1S80) 125
Place your plate, and pile your vitriall boales Nest vpon
nest.
Vitrial(l, obs. forms of Vitriol.
fVi'triary, «. Obs.'-^ [f. L. vitr-um glass.
Cf. L. vilredrius glass-worker.] Relating to the
making of glass.
1668 Sir T. Browne Let, Merritt 29 Dec, Wks. (Bohn)
III. 508 Though I have not been a stranger unto the vitriary
art, both in England and abroad.
-f Vi'triate, v, Obs,-~^ [f. as prec] trans. To
make clear like glass.
1631 A. Wilson Swisser n. i. 106 .^n ownce of Honestie,
Cleare, Pure, well vitriated.
t Vi-triature. Obs."^ [f. as prec] (See quot.)
1569 R. Androse tr. Alexis^ Seer. iw. 111. 32 It helpeth
mapuelouslye to take a dramnie of the vitrialure or glasing
of vessels made in ponder.
Vi'trios. rarc~°. [f. L. vitr-um g\a.ss + -ic 2,]
(See quot.)
Hence l^itric adj., in some later Diets.
1875 Knight Diet. Mech. ^Ti-^/-2 l^itp'cs, this term includes
the fused compounds in which silex predominates,
in contradistinction
such as glass and some of the enamels ;
to the ceramics, in which alumina predominates.
t Vi'trid, fl.
like, vitreous.
Obs,"^ [f. as prec. + -id 1.] Glass-
1777 J. Williams Acc. Anc, Ruins 11 In some others, the
stones seem to have been partly run down, and partly enveloped
by the vitrid matter.
Vitrie, variant of Vitey Obs,
Vitrifaction (vitrifse*kjan). [See Vitrify v,
and -FACTION.] = Vitrification.
17*8 Chambers Cycl.., Vitrification^ or Vitrifaction, the
Act of converting a Body into Glass, by Fire. 1840 Vv.se
Oper. Pyramids Gizeh I. 228 In some instances the glaize
was of an extremely brilliant colour, and a perfect vitrifaction.
2845 Lady Eastlake Jmls.