trill 
6479 
trilobite 
(tril), i). [Early mod. E. also Ml, tryll ; trillibub (tril'i-huli), M. [Also 
< Ml-], trillfn, tri/lloi, (Dan. trill,; roll, trundlf 
(Irilli; a disk, irilli-bi'ir, wlK'i'lbarrnw i, = Sw. 
li-illn, roll ((ci//, n roller) ; cf. ///'. The word 
lias been more or less confused with thrill 1 and 
ilrill 1 (to which its resemblance appears to be 
accidental), and with trill-.] I. f /. 1. To 
turn round rapidly; twirl; whirl. 
Trilli' this pin, and ho wol vanlshc anon. 
Chaucer, Squire's Talc, 1. 328. 
I tri/U a whlrlyglg round aboute. Jc pirouette. ... I 
holde the a peny that I w) 11 trylt my vhbnglf longer about 
than thou shalte do tliync. Paltgrare, p. 7fli. 
The sundrie sodainc smartes 
Which daily uhaunce as fortune trille* the ball. 
Cnti-ingne, Fruit* of War. 
2. To roll to and fro; rock. 
early Myself humming to myself . . . the trillo, and found by 
i . ,, use that It do come upon me. Diary, I- I"*- 
Charming sweet at night to dream 
On mowy pillows by the r, 
Of a gently purling stream. 
.11, TheOnardlan, .No. 1S4. 
3it myst tbe niylde may amont: 
H.I rradel trille to and fro, 
And syng, oye, thl song ! 
3. To throw ; cast. 
I Trytt. Je Jecte. 
4. 
" 213 - 
, 762. 
irioil. V,. ti'ii/lihiililn . ti-ii/li/lnili; also in dial, trfilli- 
IHIIJX. trnlli/liiiiis (appar. simulating IHIII); origin 
nli'si-iire. ' H'or tin- form. cf. sillilnili, tyfloM*.] 
Tripi' ; liu'urntivcly, anything trifling or worth- 
ten. [ I'rov. Kng.] 
There cannot be an ancient tripe or trillibub In the town 
hut thou art straight no-Ing It. 
B. /MM, Bartholomew Fair, 1. 1. Three-lobed ; having three lobes 
I forgive thee, and forget thy tricks or foils: noting a part divided 
Ami triltabubs, and will swear to love thee heartily. from the aricx to (hi- middle 
Shirley, Hyde Park, III. 2. 
trillichan (tril'i-chan), n. 
the pied oyster-catcher.] 
trillilt, ''. '. [Appar. an imitative extension of 
trill'-.] To drink with a gurgling sound. [Rare.] 
In nothing but golden cups he would ilrlnke or quaffe 
it; whereas In wodden mazers and Agathocles' earthen 
stuffe they trillild It off befm, 
f/athe, Lenten Htuffe (Harl. Misc., VI. 166). (Dana.) 
r/ /.-..i /,.,//,.,.). 
I <. U ". 
Same as tin,,,,. 
trilobate (tri-16'bst or tri'K.-biit >. . [ < i 
(tri-), tlircc, + NL. In/in tut, lobe. I: sec fabate.] 
illtl , ,,,.,. .,.,)., WM j,.h recede 
somewhat from each other, 
trilobated dri-li.' ba-ted), a. 
[< trilobate + -frV.] Same as 
triliilint< . 
l-nintod windows . . . trilobated or 
with elaborate tracerjr. 
Amer. Jour. ArrJunt., VI. MM. 
TrifcbMe \juil at 
Iffmma I "int. 
To pour out. 
For her tender Brood 
Tears her own bowells, trilleth out her blood 
To heal her young. 
Sylvester, tr. of Du Bartas's Weeks, I. 6. 
II. in-trans. 1. To roll. 
three children born at 
twin crystal composed of three individuals. 
Also tliri'ilini/. 
trillion (tril'yon), . [= F. trillion = 8p. tril- 
IIIH = Pg. trOm,< It. trillions, < L. tren (tri-), 
three. Of. million.] In the original and most 
in;[thri!e'nnis J b'allIwfcVastonthegrounde,.ndhe systematic sense sometimes caUed English g* &- 
cntendeth to stoppe, ... he can nat than kepe any men- numeration, though of Italian origin, the third noniic yalue rf , 
power of a million a million of millions of group has been dls- 
millions; in the French numeration, usual in cussed, and its sys- 
the United States, a thousand billions, or a mil- 
lion millions. In Italian arithmetics from the last 
quarter of the fifteenth century the words bilione or <fut- 
liuiif, trilione, yuadrilioite or quattrilione, quintilipne, eta- 
i, three, + 
^2 A Trilobita (tri-16-bi'ta), n. ,,l. [NL.: see trilo- 
"\] An ordinal group of articulated animals 
which existed in the Paleozoic period, and hare 
been c.xtinct since the close of the Carbonifer- 
ous; the trilo- 
bites. See trilo- 
bite. The name Is 
sure in swiftnesse of mocion. 
Sir T. Elyot, The Oovcrnour, i. 27. 
2. To rock ; swing to and fro ; shake ; quiver. 
As bornyst syluer the lef onslydez 
That thike con trifle on vcha tynde (branch], 
(.nii'ii glem of glodez agaynz hem glydez, 
Wyth schyinerynge schene ful schrylle thay schynde. 
Alliterative Poemt (ed. Morris), i. 78. 
3. To roll down, as water; trickle. 
With many a teare trilling [var. trilclyng] on my cheke. 
Chaucer, Summoner's Tale, 1. 156. 
From these hie hllles as when a spring doth fall, 
It trilleth downe with still and suttle course. 
Wya.lt, Comparison of Love to a Stream. 
A cold sweat trills down o'er all my limbs. 
Dryden, Tempest, 11. 4. 
trill' 1 (tril), r. [= D. trillen = MHG. trillierett, 
G. trillern, dial, trillen = Dan. trille, < P. Mller 
= It. trillare (ML. trillare) (cf. So. Pg. trinar), 
trill, quaver; prob. intended as imitative; cf. 
ML. trillare, explained in a German gloss as 
tremulous vibrations. 
To judge of trilling notes and tripping feet Dryden. 
Thro' my very heart it thrtlleth 
When from crimson-threaded lips 
Silver-treble laughter trilleth. 
Tennyson, Lilian. 
iiiiili"iie. or qmnquiliune, teilione or tettilione, settilione, Mi- 
lione, narilwne, and deeilione occur as common abbrevia- 
tions of due volte millioni, tre volte mUlioni, etc. In other 
countries these words came Into use much later, although 
one French writer, Nicolas Chuquet, mentions then at 
early as 1484, in a book not printed until 1881. The Ital- 
ians had, besides, another system of numeration, proceed- 
ing by powers of a thousand. The French, who, like other 
northern peoples, took most If not all their knowledge of 
modern or Arabic arithmetic from the Italians, early con- 
founded the two systems of Italian numeration, counting 
in powers of a thousand, but adopting tbe names which 
Cperly belong to powers of a million. The result has 
n that the names billion, trillion, etc., have, owing to 
their ambiguity, been almost discarded. A triliar, or a 
thousand millions, is called a milliard by bankers, and 
when a name for a thousand milliards cornea to be wanted 
it is probable that some other augmentative form will be 
borrowed from the Italian or Spanish. Compare billion. 
trillionth 
-W.2.] I. 
of a trillion. 2. Being one of a trillion parts. 
II. n. One of a trillion parts; the quotient 
of unity divided by a trillion. 
Trillium (tril'i-um), n. [NL. (Linneeus, 1753), 
so called with ref . to the numerical symmetry in 
has usually been con- 
sidered crustacean, 
sometimes arachni- 
dan, and again inter- 
medUte between 
these classes. The 
TriliMta are obvious- 
ly related to the rj< 
ritpterida (see cut 
there), and It Is con- 
ceded by all that their 
nearest living repre- 
sentatives are the 
horseshoe-crabs (Li- 
mulidtr). Then- rela- 
tionship with Inopods 
has been specially 
noted by various nat- 
uralists, and they Diagram of rtalmanitts, showing 
lure of Trtlottita. 
struc- 
ture o 
A, head, or cephalic shield ; B, thorax 
or carapace : C. abdomen or pygidium ; 
i, in.iryin.il band or border of the cepha- 
lic htnfj ; 3, marginal groove, internal to 
i ; 3, occipital segment ; 4, gUbellum ; 
5, frreat or eenal suture ; 6, eye ; 7, axis 
or tervum; 8, pleuron ; 9. tergal part of 
pjvklium ; 10, pleural part of pygi<lium ; 
(i, nxcil gena ; A. movable gcna ; g, genal 
have even been In 
eluded in Isopnda. or 
located between that 
order and Phyllopoda, 
and In other ways re- 
ferred to theentomos- 
tracous or edrloph- 
thalmons (tetradeca- 
pod) crustaceans. Of 
late a subclass of 
crustaceans, named Giffantostraca and Palstocarida, has 
been characterized to include the Trilobita with the eu- 
- _ . x , .. _ ^ A mrcn eumueici icvi nj in*;i(j\ic nn; j i wuwm* mvii me cu- 
2. To sing in a quavering manner; specifically, threes; < L. ires (In-), three: see three.] 1. A rypterids and llmullds. (See also Merottomata (e).) The 
.t__i__ j.-5ii rrtivniti t\f lilionamta rjonta rf tho triVA \ti'l\rnl,'lF. Irnrtwn fnrtnH of Trilnhitn nr* vrv ntlniHroillL Aluo. rarplv 
to execute a shake or trill. 
I do think she will come to sing pretty well, and to tril' 
in time, which pleases me well. I'epyt, Diary, III. 84. 
O Swallow, Swallow, if I could foUow, and light 
Upon her lattice, I would pipe and trill, 
And cheep and twitter twenty million loves. 
Tennyson, Princess, iv. (song). 
II. trans. 1. To sing in a quavering or trem- 
ulous manner; pipe. 
While in our shades, 
Through the soft silence of the listening night, 
The sober-suited songstress trill* her lay. 
Thornton, Summer, 1. 745. 
And the night-sparrow trillf her song 
All night with none to hear. 
Bryant, Hunter's Serenade. 
2. To pronounce with a quick vibration of the 
tongue ; roll, as the sound of r. 
trill- (tril), w. [= F. trille = It. trilto ; from 
the verb.] 1. A quavering, tremulous sound ; 
a rapid, trembling series or succession of tones ; 
a warbling. 
Within my limits lone and still 
The blackbird pipes in artless trill. 
T. Wartan, Inscription In a Hermitage. 
2. In music, same as shake, 5; also, formerly, 
the effect now called the vibrato. 
I have often pitied, in a winter night, a vocal musician, 
and have attributed many of his trills and quavers to the 
coldness of the weather. Steele, Tatler, No. 222. 
In arioso trills and graces 
Ye never stray, 
But gravissimo, solemn basses 
Ye hum away. Burn, To J. Smith. 
3. A consonant pronounced with a trilling 
sound, as r Passing trill, in miwfc, a melodic em- 
bellishment consisting of a rapid alternation of a prin- 
cipal tone with the next tone above. Prepared trill. 
s< v ].rt'i>are. 
trillabubt (tril'ii-bub), . See trilliliub. 
trillando (tril-laVdo), a. [It., ppr. of trilla n; trillo (tril'6), w. 
----- -_ j nil__ a__ ... *...-jj' 1 
genus of liliaceous plants,of the tribe Mcdeoleee. 
II is characterized by a solitary flower, usually with the 
three outer segments green and herbaceous, and the three 
Inner segments larger, colored, and withering-persistent. 
There are about 15 species, 14 of which are natives of North 
America; 2 occur In Asia from the Himalayas to Japan. 
They are singular and attractive plants with a short, thick, 
fleshy rootstuck (see cut under rhizome) producing a low 
unbranched erect stem terminated by a whorl of three 
broad deep-green leaves, each with three to five nerves, 
and also finely netted-velned. From their center rises the 
sessile or pedlcelled flower, either reddish, purple, white, 
or greenish, with a large three-celled and three- to six- 
angled ovary bearing three slender spreading stigmas, and 
becoming In fruit an ovoid reddish berry. The contrast 
presented by the colored petals and prominent green sep- 
als Is an unusual one In the order, but it disappears in 
T. Oooonmnumand in T. CTride**n(now esteemed a va- 
riety of T. sessile). In which the perianth-segments are all 
colored alike. They are known by the generic name, and 
as three-leafed nightshade, the white species also as irate- 
robin, white bath, trirthroot, and in the West as wood-lily. 
T. erectiim, the purple trillium, a strong-scented species, 
is also known locally as Indian balm, Indian shamrock, and 
nose-bleed. Of the 7 species in the northeastern United 
trill: see trill'*.] In ntiixii; trilling. 
. 
States, 3 produce white and 3 dull-purple flowers ; In one, 
T. erythrocarpuin, the painted trillium, the while petals 
are beautifully marked with deep-red lines. Two species 
of North Carolina, T. pwtitlum and T. (rtirforoffl.bear respec- 
tively flesh-colored and rose-colored flowers. The Urge 
handsome white petals turn rose-color in T. grandifarum 
of the Eastern and Central States, and in its Caluornlan 
representative, T. omtmn; In other species they commonly 
turn greenish. T. sessile, the only species extending across 
the continent, is remarkable for Its closely sessile flower ; 
T. cernumn, for its nodding peduncle; and T. petidatum. 
of Oregon, for its extremely short stem. See cut under 
rhiiome and irate-robin. 
2. [1. c.] A plant of the above genus. 
A very pretty flower which we began to meet well up on 
the mountain-side was the painted trillium, the petals 
white, veined with pink. 
J. Burroui/hs. The Century, XXXVI. 613. 
Trillium family, a group of liliaceous plants Including 
Trillium, formerly classed as an order Triltiacrir, now as 
a tribe Medeolea. 
[< It. trillo, trill : see trilP, n.] 
Same as trilft. Blottnt, Glossographia (1656). 
known forms of Trilobita are very numerous. Also, rarely 
and more correctly, Tnlobita. 
< Gr. T/)fif (rpt-), three, 
J Any member of the 
so called from the three lobes or 
main divisions of the body cephalic, thoracic, 
and abdominal. See Trilobita. TrUobites are of 
much popular as well as scientific Interest ; some of them 
occur in profusion in Paleozoic formations, and trilobltes 
as a group are among the longest and most widely known 
of fossils, not yet entirely divested of a problematical char- 
acter. In the Linnean system all of the few forms then 
known were considered one species, named Kntomolithut 
paradoxwt, and a sort of likeness to chitons caused La- 
treille to range these organisms near those mollusks. 
Trilobltes are the most characteristic fossils of their class 
throughout the Paleozoic rocks. More than .TO) species 
have been described, and upward dl 70 genera have been 
named and referred to several higher groups. Upward 
of 9)0 species, of about &n genera, mostly of the Cambrian 
and Silurian, are described as British ; 350 species, of 42 
genera, are recorded from the lower Paleozoic rocks of Bo- 
hemia; the Devonian forms are comparatively few; and 
the series closes with some small Carboulierous species, 
mostly of two genera. The oldest genus is named Agnos- 
tut. Some of the trilohltes are of comparatively gigan- 
tic size, as species of Paradoxidet, 2 feet long. An ordi- 
nary trilobite, a species of Dalmanites, is figured above. 
Tbe body of a trilobite Is generally of a flattened oval fig- 
ure, whose upper side presents, besides the obvious trans- 
verse division Into three parts, a median longitudinal ele- 
vation from one end to the other. The head, composed 
of several coalesced segments, and presenting certain su- 
tures, constitutes a cephalic shield rounded in front, with 
an axial raised section, the glabellum, on each side of 
which are Urge compound eyes (not unlike those of the 
horseshoe-crab), and whose lateral limbs or borders are 
prolonged backward to a varying distance on each side of 
the thorax (In some cases produced beyond all the rest of 
the body). The second division of the body consists of a 
varying number (up to twenty-six) of separate thoracic 
segments, which were more or less freely movable upon 
one another, so that some trilobltes could roll themselves 
up In a ball, like a sowbug (isopod) of the present day. 
The raised axis of the thoracic division is the tergum. and 
parts on each side of It are the pleura. Tbe third division 
of the body Is the abdomen or pygldlum. of a variable 
number (up to twenty-eight) of segments. In general re- 
