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’TRIANGLE ISLAND, an island of South America, in 
the mouth of the Orinoco. 
TRIANGLE ISLAND, one of the smaller Bahama 
islands. Lat. 20. 51. N. long. 69. 53. W. 
TRIA'NGLED, adj. Having three angles. 
TRIANGLES, a dangerous shoal in the Eastern seas, near 
the north coast of the Pracel, or Prasil. 
TRIANGLES, Northern, a reef of rocks in the bay of 
Honduras. Lat. 18. 50. N. long. 87.50. W. 
TRIANGLES, Southern, a reef of rocks and islets in 
the bay of Honduras Lat. 17. 5. N. long. 111. 59. W. 
TRIANGULAR, adj. [triangularis, Lat.] Having three 
angles.—Though a round figure be most capacious for the 
honey, and convenient for the bee; yet did she not chuse 
shat, because there must have been triangular spaces left 
void. Ray. 
TRIA'NGULARLY, adv. After the form of a triangle.— 
A portico formed circularly, a plain cut triangularly. 
Harris. 
TRIANTIIEMA [three-flowered], in Botany, a genus of 
the class decandria order digynia, natural order of succu¬ 
lents, portulaceae (Juss.) —Generic Character. Calyx:-pe¬ 
rianth five-leaved; leaflets oblong, coloured within, mucro- 
nate below the tip, permanent. Corolla none, unless the 
calyx formed of a calyx and corolla together be so called. 
Stamina: filaments ten (in some five to twelve), capillary, 
length of the calyx; anthers roundish. Pistil: germ rather 
superior, oblongish, refuse; style one or two, filiform, length 
of the stamens, hispid on one side; stigmas simple. Pericarp: 
capsule oblong, truncate, retuse, cut round; cells two, supe¬ 
rior, and two inferior. Seeds solitary or two, subovate. 'The 
number of stamens and styles in distinct species is different.— 
"Essential Character. Calyx mucronate below the tip. Co¬ 
rolla none. Stamina five or ten. Germ retuse. Capsule cut 
round. 
1. Trianthema monogyna.—Flowers five-stamened, one- 
styled. This sends out many trailing branches which lie 
flat on the ground, spreading two feet or more each way, 
and having much the appearance of purslane; with fleshy 
succulent leaves almost oval; the flowers come out from the 
joints of the stalks, they are somewhat of a purple colour.— 
It grows naturally in most of the islands in the West Indies, 
and is often a troublesome weed there. 
2. Trianthema crystallina.—Flowers five-stamened, one- 
sty led, heaped ; leaves oval; stem shrubby.—Native of 
Arabia and the East Indies. 
3. Trianthema pentandra. —Flowers five-stamened, two- 
styled.—Native of Arabia. 
4. Trianthema fruticosa.—Shrubby, one-styled; alternate 
filaments anther-bearing.—Native of the kingdom of Tunis. 
5. Trianthema humifusa.—One-styled; leaves lanceolate; 
stem frulescent, round.—N a *i ve of the Cape of Good Hope. 
6. Trianthema anceps.—One-styled; leaves lanceolate; stem 
frutescent, ancipital.—Native of the Cape of Good Hope. 
7. Trianthema decandra.—Flowers ten-stamened, two- 
styled.—Native of the East Indies. 
Propagation and Culture. —Sow the seeds on a good 
hot-bed in the spring, and when the plants are fit to remove, 
plant them on another hot-bed, to bring them forward, 
otherwise the seeds will not ripen. In June they may be 
transplanted into a warm border, where they will grow until 
the frost in autumn kills them. 
TRIA'RIAN, adj. [triarii, Lat., old soldiers, placed as 
a reserve,] Occupying the third post or place. Not in use. 
Let our week 4ays lead up the van, 
Let the brave second aud triariau band 
Firm against all impression stand : 
The first we may defeated see; 
The virtue and the force of these are sure of victory. Cowley. 
TRIBAU, Bohmische or Bohemian, a petty town in 
the east of Bohemia; 90 miles east-by-south of Prague, and 
6 west of Landskron. It contains 900 inhabitants. 
TRIBAU, Mah risch, or Morawska Trzebowa, a 
small town of the Austrian states, in Moravia, on the 
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Trzebowka; 28 miles north-west of Olmutz. Population 
3100. 
TRIBE, s. [tribus, Lat. The word is from the Gr, 
ryir7v?, or rpiTv?, a third part, by changing the t into b ; 
whence the Lat. tribus, which originally meant a third part 
of the people. Thes. Gr. and Morin. ] A distinct body of 
the people as divided by family or fortune, or any other 
characteristic. 
Who now shall rear you to the sun, or rank 
Your tribes, and water from th’ ambrosial fount. Milton. 
It is often used in contempt. 
Folly and vice are easy to describe, 
The common subjects of our scribbling tribe. Roscommon. 
To TRIBE, v. a. To divide into tribes or classes.—Our 
fowl, fish, and quadrupeds, are well tribed by Mr. Wil- 
lughby and Mr. Ray. Bp. Nicolson. 
TRIBESEES, or Tribsees, a town of Prussia, in Pome¬ 
rania, ontheTrebel, with 1400 inhabitants; 12 miles east-by 
south of Rostock. 
TRI'BLET, or Tri'boulet, s. A goldsmith’s tool for 
making rings. Ainsworth. 
TRIBOLI, or Tereeoei, a town of Asia Minor, on the 
coast of the Black sea, situated at the extremity of the cape, 
bounding a deep bay of the same name. The town is sup¬ 
posed to contain 400 families, and has two handsome khans. 
There is a port, where small vessels may ride securely in 
stormy w'eather; 72 miles east of Trebisond. 
TRIBOMETER [formed of t yitu, I rub, and /xe/poj, 
I measure], in Mechanics, a term applied by Muschenbroeck 
to an instrument invented by him lor estimating the friction 
of metals. It consists of an axis formed of hard steel, pass¬ 
ing through a cylindric piece of wood: the ends of the axis, 
which are highly polished, are made to rest on the polished 
semicircular cheeks of various metals, and the degree of friction 
is estimated by means of a weight suspended by a fine silken 
string or ribband over the wooden cylinder. For a farther 
description and figure of this instrument, and the result of 
various experiments performed with it, see Muschenb. Int. 
ad Phil. Nat. vol. i. p. 151, &c. 
TRIBONIANUS, or Tribonian, an eminent jurist, Was 
a native of Side, in Pamphylia, and richly furnished with 
Greek and Roman literature, so that he composed works on 
a great variety of subjects. But as he principally devoted 
himself to the study of civil law, he excelled in this depart¬ 
ment, and rose to some of the highest posts in the empire. 
In the office of questor, to which he was advanced, his avarice 
led to such a degree of oppression, that in the sedition of 
Constantinople, A. D. 532, his removal was one of the de¬ 
mands of the people. His influence, however, was such, that 
he was soon restored, and he con tinued on account of his 
talents and by means of his servile adulation, to enjoy the 
favour and confidence of his sovereign for twenty years. 
He w'as elevated to the dignities of consul and master of the 
offices, and was consulted on all important occasions. He 
has been charged with enmity to the Christian faith, and he 
has been under the inconsistent imputations of Atheism and 
Paganism. Whether charges of this kind be true or false, 
he w'as notorious for his avarice and want of integrity ; and 
from the contrast presented by his hecirt and his understand¬ 
ing, Gibbon has drawn an unjust parallel between him and 
our great Bacon. His death is placed about the year 54ff> 
Anc. Un. Hist. Gibbon. 
TRIBSTADT, or Tripstadt, a petty town of the Bava¬ 
rian province of the Rhine; G miles south of Kaiseislautern. 
TRIBUI.A'TION, 5. [tribulation, Fr.] Persecution; 
distress; vexation; disturbance of life. 
The just shall dwell. 
And after all their tribulations long. 
See golden days, fruitful of golden deeds. Milton. 
TRIBULATION, Cape, a cape on the north-east of New 
Holland. Lat. 16. 6. S. long. 145.21. E. 
TRIBULUS [Tpi|8oXos, of Dioscorides. Tribulus of Vir¬ 
gil ; a triplici cuspide; sr< i-eei c /0«Xa; eyy.i, from its having 
three 
