Trypoxylon 
Trypoxylon(tri-pok'si-lon), H. [NL. (Latreille, 
1804), < Gr. rpmav, bore, + fr/oi', wood.] A 
genus of fossorial hymenopterous insects, of 
the family Crabronidse, composed of small soli- 
tary wasps having the eyes deeply emarginate 
within, the abdomen long and clavate, the mar- 
J_ 
Trypoxylon albitarsc. ^Line shows natural size.) 
ginal cell long, pointed at the apex, and the neu- 
ration of the posterior wings complete. They 
are noted for adapting the old nests of otjier species to 
their own use. T. albitarse is found abundantly in the 
old cells of wasps of the genus Pelopaw iii the United 
States. Three European and fourteen North American 
species are known. 
trypsin (trip 'sin), 11. [Prob. for tripsine, so 
called because it was first obtained by rub- 
bing down the pancreas with glycerin ; < Gr. 
rpl-^if, a rubbing (< rpipeiv, rub), + -i2.] The 
proteolytic ferment which is the active prin- 
ciple of the pancreatic fluid; pancreatin. It 
is active in neutral or alkaline solutions, and not only 
produces peptones from the proteid matter of the food, 
hut further converts a portion of the peptones into leucin 
and tyrosin. 
trypsinogen (trip-sin'o-jen), n. [< trypsin + 
-gen.] A granular substance in the cells of the 
pancreas which is the antecedent of trypsin. 
tryptic (trip'tik), a. [< tryps-in (trypt-) + -ic.'] 
Of or pertaining to trypsin : as, tryptic action. 
tryptoue (trip'ton), . [< trypt-ic + -one.'} A 
substance formed by the action of pancreatic 
juice on proteids. 
trysail (tri'sal or tri'sl), n. A fore-and-aft sail 
set with a gaff and sometimes with a boom on 
the foremast and mainmast of ships, or on a 
small mast called a trysail-mast. See mast 1 . 
try-square (tri ' skwar), . A carpenters' 
square. Also trial-square and trying-square. 
See square 1 , 5. 
tryst (trist), n. [< ME. trist, tryst, a variant of 
trust: see trust 1 . The present spelling tryst 
instead of trist is due to Scotch use.] It. 
Same as trust 1 -, in various senses. 2. An ap- 
pointment to meet ; an appointed meeting: as, 
to keep tryst; to break tryst. 
There was a knight and a lady bright 
Had a true tryet at the broom. 
The Broomfield Hill (Child's Ballads, I. 131). 
Wae's me for the time, Willie, 
That our first tryst was set ! 
Motherwcll, My Held is Like to Kend, Willie. 
3. An appointed place of meeting ; a rendez- 
vous. 
Lo, holde the at thy tryste cloos, and I 
Shal wel the deere unto thy bowe dryve. 
Chaucer, Troilus, ii. 1534. 
4. An appointed meeting for the exchange of 
commodities; a market: as, Falkirk tryst (a 
noted horse- and cattle-market held at Falkirk 
in Scotland). 
I neither dought to buy nor sell, 
At fair or tryst where I may be. 
Thomas the Rhymer (Child's Ballads, I. 112). 
To bide tryst, to wait at the appointed time and place 
to meet one according to engagement or agreement. 
"You walk late," said I. ... "I bide tryste," was the 
reply, "and so, I think, do you, Mr. Osbaldistone." 
Scott, Rob Roy, xxi. 
tryst (trist), v. [< ME. tristen, trysten; var. of 
trust 1 . Cf. tryst, n.] I. trans. 1. Same as trust 1 , 
in various senses. 2. To make an appoint- 
ment to meet at a given time and place ; en- 
gage to meet. 
Sae cunningly 's I trysted her 
Unto yon shade o' broom. 
WiUiam Ouiseman (Child's Ballads, III. 51). 
Why did ye tryst me here? 
The Hireman Ckiel (Child's Ballads, VIII. 238). 
II. intrans. To agree to meet at any particu- 
lar time or place. [Scotch.] 
trystell-treet,. [Formerly also tristil; <"trys- 
tell for tryster* + tree.'] A tree at which a meet- 
ing is appointed. 
Welcome be thou, gentill knyght, 
Under my tryntell tree. 
Lytell Geste of Robyn Hode (Child's Ballads, V. 92). 
tryster 1 (tris'ter), H. [< tryst + -!.] 1. One 
who trysts ; one who sets or makes a tryst ; one 
6516 Tsuga 
T,.l,n fu-oc o Hmo onH nlapp of mpptintr 2 One members, in the form of !i shifting helve or a pivoted pro 
1 . es a ' * t^ctor, for adjusting the blade at different angles on the 
who attends a tryst or market. drawing-table. See%arei, 5. 
tryster 2 t, . [< ML. tryster, tnster, tnstre, trys- t su t, a (tso'ba), w. [Jap.] The guard of a 
tor, tristur; < OF. tristrc, perhaps a var. Otter- J a p ane8 e sword. It is a flat disk of metal, of rounded 
tre, a piece of ground, a mound ; contused in or fi-regular form, and is typically treated as an indepen- 
ME. with tryst.] An appointed place; a sta- 
tion ; a rendezvous. 
Thenne watz he went, er he wyst, to a wale tryeler. 
Sir Gawaytie and Ike Green Knight (E. E. T. S.), 1. 1712. 
trystilyt, adv. A Middle English form of trustify. 
trysting (tris'ting), n. [Verbal 11. of tryst, .] 
The act of appointing a meeting; an appointed 
meeting. 
trysting-day (tris'ting-da), n. An appointed 
day of meeting or assembling, as of military 
followers, friends, etc. 
By the nine gods he swore it, 
And named a trysting day. 
Macavlay, Horatms. 
trysting-place (tris'ting-plas), . An arranged 
meeting-place ; a place where a tryst or appoint- 
ment is to be kept. 
At our trysting-place for a certain space 
I must wander to and fro. Scott, Eve of St. John. 
try-works (tri'werks), n. sing, and pi. The 
boilers and furnaces, either on board a whale- 
ship or on shore, for converting blubber into oil. 
It was also necessary to build try-icorks, as they are 
called, being furnaces for melting the blubber. 
Fisheries of U. S., V. 11. 210. 
t. S. An abbreviation of tasto solo. 
Tsabian, n. See Sabian*. 
tsamba (tsam'ba), n. [Tibetan.] The prin- 
cipal cereal product of Tatary, Tibet, and parts 
of China. 
The principal grain is tsing-kou or black barley, from 
which the tsamba, the principal aliment of the whole pop- 
ulation [of Tibet], rich or poor, is made. 
Hue, Travels (trans. 1852), II. 153. 
Fortunately I bought enough tsamba and butter to last 
for a day or two, for on the morrow the courtyard was de- 
serted. The Century, XLI. 720. 
tsar, tsarevitch, etc. See czar, czarevitch, etc. 
tsatiee (tsat'le), n. [< Chinese Tsat-li, the name 
of a place noted for the production of this kind 
of silk, < tsat, a dialectal form of teWi, seven, + 
U, a mile.] A variety of Chinese raw silk, said 
to be the finest known. 
tscheffkinite (chef'kin-It), n. [Named from 
Gen. Tscheffkin, chief of the Mining Depart- 
ment of Bussia.] A rare mineral occurring in 
massive forms of a velvet-black color, it is a sili- 
cate containing titanium, iron, the cerium metals, and 
other elements ; ita exact composition is doubtful, 
tschermigite (cher'mi-glt), . Same as am- 
monialum. 
Tschudi, Tschudic. See Chudi, Citudic. 
Tsech, n. See Czech. 
tse-hong (tse'hong), . [Chinese, < tse, tsz', 
beautiful, fascinating, -t- hong, hung, red.] A 
purplish-red pigment, consisting of white lead 
with alumina, ferric pxid, and silica, used by 
the Chinese for painting on porcelain, 
tsetse (tset'se), n. [Also tsetze, tzetze, tzetse; 
South African.] An African dipterous insect, 
Tsetse (Gfassiita morsitans\ four times natural size. 
of the family Stomoxyidee and genus Glossina, 
G. morsitans, whose bite is often fatal to some 
animals, as horses, cattle, and dogs. 
tsetse-fly (tset'se-fli), n. The tsetse. 
tsien (chen), n. See cash 3 , 1. 
T-square (te'skwar), n. A ruler or guide used 
in mechanical and architectural drawing, it 
consists of two wooden arms joined together at right an- 
gles like the letter T, the shorter arm, called the helve, 
projecting so that it can slide along the edge of the draw- 
ing-table, which serves as a guide, and the longer arm or 
blade serving as a ruler. Some squares have additional 
Japanese Tsuba of Pierced Work. 
dent work of art, being in general pierced with fretwork, 
decorated with low relief, engraving, damaskeening, or 
the like. 
Tsuga (tsu'ga), H. [NL. (Carriere, 1855), < Jap. 
tsuga, the name of T. Araragi, lit. 'yew-leafed' 
or 'evergreen.'] 1. A genus of coniferous 
trees, of the tribe Abietiueee, including the hem- 
locks, and intermediate between Picea, the 
spruce, and Abies, the fir. Its staminate flowers and 
its seemingly two-ranked flat linear leaves resemble those 
of Abies, but it agrees with Picea instead in its persistent 
petiole-bases and in its reflexed cones with persistent 
scales. The 6 species are evergreens with slender flat or 
often pendulous branchlets, and narrowly linear leaves, 
flat above (convex or keeled in T*Pattoniana), and spirally 
inserted, but spreading in two ranks. The main branches 
are mostly horizontal, and are irregularly inserted, not 
whorled as in the flr and spruce. They re tall trees (ex- 
cepting T. Caroliniana), reaching 80 to 100 feet high, with 
large cylindrical trunks and thick brown bark, which is 
deep-red within. The cones are small and brown, an inch 
or less long, or in T. Pattoniana cylindrical and 2 or 3 
inches long ; in this and in T. Mertensiana they are bright- 
purple until ripe. Two species are found on the Atlantic 
and 2 on the Pacific side of North America, and 2 in Asia. 
In each case one of the two species is interior, alpine, and 
more or less local, while the other is more wide-spread, 
and approaches the coast. T. Canadengis, the hemlock- 
spruce, is mosthigh- 
ly developed in the 
Allegheny range, 
extending south to 
Alabama, and form- 
ing the larger part 
of the dense forests 
northward. Its 
trunk is often 3, 
sometimes 6, feet in 
diameter, forming 
in the oldest trees a 
nearlyuniform shaft 
for two thirds of its 
length. It furnishes 
the principal tan- 
bark of the eastern 
United States, and a 
coarse wood, the red 
and the white hem- 
lock of lumbermen. 
It is the source of 
hemlock-pitch, used 
in stimulating plas- 
ters, and of a fluid 
extract sometimes 
used as an astrin- 
gent. It is now 
planted for hedges 
and to ornament 
lawns in the east- 
ern States, also in 
Europe and Austra- 
lia, and is much ad- 
mired in its earlier 
growth for its deli- 
cate spray with 
light-green leaves 
silvery beneath, and hung with small oval brown cones 
about the ends of the branches. (See cut under imbricate.) 
In middle life the long-persistent dead lower branches 
often render it unsightly, and impair the value of the 
wood. T. Caroliniana is the Carolina hemlock, a small 
and rare tree of dry rocky ridges in the Carolinas, having 
larger, glossier, blunter leaves, and larger cones with wide- 
spreading scales. T. Mertensiana, the western hemlock, 
forms large forests in Oregon, extending. to Montana and 
Alaska ; it yields the principal tanning-material of the 
northwestern States and a coarse inferior lumber ; it ex- 
cels the eastern species in its size, being sometimes 150 
feet high and 12 feet in diameter. T. Pattoniana, the al- 
pine spruce, occurring locally from British Columbia to 
California, sometimes 7 feet in diameter, peculiar in the 
deflexed base of its spreading branches and its finer satiny 
wood, is exceptional in the genus in its scattered quad- 
rangular leaves, with the persistent petiole-base hardly 
prominent, two-lobed pollen-grains like those of pines, 
:uitl large leather-brown cones with their scales reflexed. 
It is therefore separated by Lemruon (1890) as a genus, 
Hesperopeitce. T. Araraiji (T. 8itbddn)ot Japan, the ori- 
ginal species, forms large forests on Kusiyama and other 
Branch with Cones of Hemlock-spruce 
(TsHfa CaHtutfnsis}. 
