Trichonotus 
cycloid scales of moderate size ; the eyes look upward ; the 
teeth are in villlform bands on the jaws ; the long dorsal 
fin is spineless ; the anal is also long ; the ventrals are ju- 
gular, with one spine and five rays ; and the caudal verte- 
bne are very numerous. 
2. In eiitom., a generic name which has been 
used for certain beetles and flies, but is in each 
case preoccupied in ichthyology. 
trichopathic (trik-o-path'ik), a. [< trichopath-y 
+ -iV.] Relating to disease of the hair. 
trichopathy (tri-kop'a-thi), n. [< Gr. Opij 
(rptx-), hair, + -raffia, < jrdOof , suffering.] Treat- 
ment of diseases of the hair. 
Trichophocinae (trik"o-fo-si'ne), n. pi. [NL., < 
Gr. dpi!- (rptx-), hair, + puiui, a seal, + -4MB.] 
A subfamily of the Otariidie, or eared seals, in- 
cluding the hair-seals as distinguished from the 
fur-seals ( Ulophociny). There is no type genus, 
hair, + -<fopf, < <t>f/>"v = E. Marl.] 1. In lot., 
the special cell or chain of cells in certain al- 
gae which bears the trichogyne. See Florideas. 
Bennett and Murray, Cryptog. Bot., p. 199. 2. 
In goal., a process of the integument of certain 
annelids, as Polyekxta, within which are de- 
veloped the peculiar chitinous setee of the para- 
podia, and which incloses the bases of the pen- 
cil-like bundles of setae (whence the name). 
See cut under pygidinm. 
trichophoric (trik-6-for'ik), a. [< trichophore 
+ -ic.] In bot. : (a) Of or pertaining to the 
trichophore : as, the trichophoric apparatus. (b) 
Of the nature of a trichophore : as, the tricho- 
phoric part of the procarp of certain crypto- 
gams. 
trichophorous (trl-kof'o-rus), a. [As tricophore 
+ -ows.] In zool., bearing hairs or hair-like 
parts, as setae ; of the nature of a trichophore. 
Trichophyton (tri-kof i-ton), n. [NL., < Gr. 
Bpll; (rpix-), hair, + <j>vr6v, a plant.] A genus 
of minute saprolegnious fungi, parasitic on the 
skin of man, where they grow luxuriantly in and 
beneath the epidermis, in the hair-follicles, etc. 
T. tonsurans produces the skin-disease known 
as tinea or ringworm. See dermatophyte, tinea 1 . 
Trichoplax (trik'o-plaks), n. [NL., < Gr. fl/jff 
( T P'X~), hair, + w/laf, a plate.] A supposed 
generic type of animal, of wholly undetermined 
affinities, so called from the ciliated plate-like 
surface. The species is T. adherens. 
trichopter (tri-kop'ter), n. [< Trichoptera, q. v.] 
A member of the Trichoptera; a caddis-fly. 
Trichoptera (tri-kop'te-ra), n. pi. [NL., neut. 
pi. of trichopterus: see 'irichopterous.] A subor- 
dinal group of neuropterous insects, the caddis- 
flies: so called because the wings are generally 
hairy to an extent not found in other Neurop- 
tera. The posterior wings are folded in rest ; the man- 
dibles are rudimentary. The group is approximately the 
same as Phryganeida, being composed of the families 
Phryganei/Jx, Limnophilidee, and sundry others. See cut 
under caddiit-worm. 
trichopteran (tri-kop'te-ran), a. and n. [< Tri- 
choptera + -an.] I. . Same as trichopterons. 
II. M. A member of the Trichoptera ; any cad- 
dis-fly or phryganeid. 
trichopterous (tri-kop'te-rus), a. [< NL. tri- 
chopterus, hairy-winged, <^ Gr. 6pi^ (rpix-), hair, 
+ vTfpov, wing.] Belonging to the Trichoptera. 
trichopterygid (trik-op-ter'i-jid), a. and n. I. 
a. Pertaining ;to the Trichopterygidae; relating 
to or resembling a trichopterygid. 
II. n. A beetle of the family Trichopterygidse. 
Trichopterygidae (tri-kop-te-rij'i-de), n. pi. 
[NL. (Burmeister, 1845), < Trichopteryx + -idee.] 
A family of clavicorn beetles, including the 
smallest beetles known. The antenna are verticil- 
late with long hairs, and the wings are fringed with hair. 
A few species are apterous. The larvae are active and 
carnivorous ; some of them feed on podurans. Some are 
myrmecophilous ; others live under bark. In the genera 
Aderceg, Astatopteryx, and Neuylenes the phenomenon of 
alternate generation has been noticed, a blind apterous 
generation alternating with one in which the individuals 
have eyes and wings. About 150 species are known, of 
which about 60 inhabit the United States. 
Trichopteryx (tri-kop'te-riks), . [NL. (Hiib- 
ner, 1816), < Gr. 0p/f (rpix"), hair, -I- Trrepif , wing.] 
1. A genus of geometric! moths. 2. A genus 
of clavicorn beetles, typical of the family Tri- 
chopterygidse. Kirby, 1826. They have the antennie 
elongate, eleven-jointed, the prothorax not constricted be- 
hind, the abdomen with six ventral segments, the hind 
coxae distant, and the mesosternum carinate. The species 
are found on dung and vegetable debris. Over 60 species 
are known, and the genus is represented in Europe, Asia, 
and North and South America. 
trichort, A Middle English form of treacher. 
trichord (tri'kord), . and a. [< Gr. TplxopSo/;, 
having three strings, < rpelf (rpt-), three, + ..top*?, 
6470 
string: see cord 1 , chord.] I. >i. In music, any 
instrument with three strings, especially the 
three-stringed lute. 
II. <i. Having three strings; characterized 
by three strings Trichord pianoforte, a pianoforte 
in which most of the digitals have each three strings 
tuned in unison. 
trichorexis(trik-o-rek'sis), n. [NL., < Gr. t)pi$ 
(T/HX-), hair, + 'pf/^if, a breaking, < pTiyvivai, 
break.] Brittleness of the hair Trichorexis 
nodosa, a disease of the hair characterized by brittleness 
and the formation of swellings on the shaft. 
trichorrhea, trichorrhcea (trik-o-re'a), n. 
[NL., < Gr. Bpi!; (rptx-), hair, + poia, a flowing, 
< pciv, flow.] Falling of the hair; alopecia. 
Trichosanthes(trik-6-san'thez), H. [NL. (Lin- 
naeus, 1737), named from the fringed petals; < 
Gr. fyx'f (rpix-), hair, + avtiof, flower.] A genus 
of plants, of the order Cucurbitacese and tribe 
Cuciunerineie. It is characterized by entire calyx-lobes, 
a five-parted wheel-shaped fringed corolla, conduplicate 
anther-cells, and numerous polymorphous seeds. There 
are about 4*2 species, natives of tropical Asia, northern 
Australia, and Polynesia. They are annual or perennial 
climbers, sometimes with a tuberous root, bearing entire 
or lobed and cordate leaves and unbranched or forking 
tendrils. The flowers are white and monoecious the 
male racemed, the female solitary and followed by a 
fleshy smooth or furrowed fruit, often large and globose, 
oblong, or conical, sometimes elongated, slender, striped, 
and serpent-like. T. anguina and T. colubrina are known 
as snake-gourd or viper-gourd, also as snake-cucumber 
(which see, under cucumber). 
trichOSChisis (trik-os-ki'sis), . [NL., < Gr. 
t)pi% (rpix-), hair, + ax'aif, a cleaving, < ax'&iv, 
cleave: see schism.] Splitting of the hair. 
Trichoscolices (trik'o-sko-U'sez), n. pi. [NL., 
< Gr. 0p/f (rpix-), hair, +' ovcu/liyf, a worm.] A 
superordinal division, proposed in 1877 by Hux- 
ley to be established to include the Trematoda, 
Cestoidca, Turbellaria, and Botifera, in order to 
discriminate the morphological type which they 
exemplify from that of the Nematoscolices, con- 
taining the Nematoidea. See Nematoscolices. 
trichosis (tri-ko'sis), n. [NL., < Gr. Opi$ (rpix-), 
hair, + -osis.] Any disease of the hair: same 
as plica, 1. 
Trichosomata (trik-o-so'ma-ta), n. pi. [NL. 
(Diesing), < Gr. 6pi% '(rpix-)', h'air, + ou/ia(r-), 
the body.] The Peridinidse and allied infuso- 
rians, corresponding to the Choanoflagellata of 
H. J. Clark and W. S. Kent. 
trichosomatous(trik-o-som'a-tus), a. Pertain- 
ing to the Trichosomata, or having their charac- 
ters ; having the body flagellate, as an infuso- 
rian. 
trichosporange (trik-o-spo'ranj), n. [< NL. 
trichosporangtum, q. v.] In bot., same as tricho- 
sporangium. 
trichosporangium (trik'o-spo-ran'ji-um), n. ; 
pi. trichosporangia (-a). [NL. (Thuret), < Gr. 
fyf (rpix-), hair, + NL. sporangium, q. v.] In 
bot., the pluriloeular sporangium, or zoosporan- 
gium, of the fucoid algae, consisting of an ag- 
gregation of small cells, each one of which con- 
tains a single zoospore. Compare oosporangium. 
trichospore (trik'o-spor), n. [< Gr. 8pi$ (rpix-), 
hair, + avopa, seed : see spore 2 .] In bot., one of 
the peculiar spores of the Hyphomycetes : same, 
or nearly the same, as conidium. 
Trichostema (trik-o-ste'ma), M. [NL. (Lin- 
naeus, 1763), named from the capillary filaments ; 
< Gr. Opli- (rpix-), hair, + arf/fta, stamen.] A 
genus of gamopetalous plants, of the order La- 
biatse and tribe Ajugoidese. it is characterized by 
the four long-exserted stamens with divaricate anther- 
cells, and by the deeply lobed ovary. The 8 species are 
all natives of North America. They are clammy glandular 
herbs with a strong balsamic odor. They bearentire leaves, 
and axillary whorls of numerous mostly blue flowers, the 
corolla with a slender tube and nearly equally five-toothed 
spreading border, from which the conspicuous arching 
stamens project, suggesting the popular name Mite-curie 
(which see). The species of the eastern United States 
have a very strongly two-lipped and depressed calyx, and 
loose flower-clusters, as T. dichotvmum, the bastard pen- 
nyroyal. The western have the calyx normal and the 
flower-clusters dense. T. lanatum, with a striking purple- 
woolly spike, is known in California as Mack sage. 
trichosyphilis (trik-6-sif'i-lis), n. [NL., < Gr. 
Spi'f (fptx-), hair, + NL. syphilis.] A syphilitic 
disease of the hair. 
trichosyphitosis (trik-6-sif-i-16'sis), n. [NL., 
as trichosyphilis + -osis.] Same as trichosyphilis. 
trichotha'Uic (trik-o-thal'ik), a. [< Gr. flpif 
( r P l X-)> hair, + 0oA/.<if, a green shoot: see thal- 
lus.] In bot., having a filamentous or hair-like 
thallus, as certain algse. 
trichotomic (trik-o-tom'ik), n. Pertaining to 
trichotomy; influenced by or practising tri- 
chotomy. 
trichotomous (tri-kot'o-mus), a. [< Gr. Tpixa, 
in three, + -rouof, < Ti/iveit>, ra/ielv, cut.] Di- 
trick 
vided into three parts, or divided by threes; 
branching or giving off shoots by threes ; tri- 
furcate ; also, dividing a genus into three spe- 
cies. 
tlichotomously (tri-kot'o-mus-li), adv. In a 
trichotomous manner ; in three parts. 
trichotomy (tri-kot'o-mi), )). [< Gr. rpixa, in 
three, 4- rojtia, < re/imtv, raimv, cut.] Division 
into three parts; specifically, in theol., division 
of human nature into body (sown), soul (psy- 
che), and spirit (pneuma). 
His [Aristotle's] trichotmny into hypotheses, definitions, 
and axioms. Barrow, Math. Lects., viii. 
trichotriaene (trik-o-tri'en), . [< Gr. Tpi%a, in 
three (< rpcif (rpi-), three), + rpiatm, a trident: 
see tritene,'] Of sponge-spicules, a trichoto- 
mous triaene; a cladose rhabdus the three cladi 
of which trifurcate. See triseiie. Sollas. 
trichroic (tri-kro'ik), a. [< Gr. rpixpoo(, rpi- 
Xpovs, also rpixp<Jf, three-colored (< rpuf (rpi-), 
three, + xp^ a , XP&Si color), + -ic.] Possessing 
the property of trichroism. E. W. Streeter, Pre- 
cious Stones, p. 167. 
trichroism (tri'kro-izm), . [< trichro-ic + 
-ism.] The property possessed by some crys- 
tals of exhibiting different colors in three dif- 
ferent directions when viewed by transmitted 
light. It is due to the different degrees of absorption 
in the three directions. The more general term pleoehro- 
ism is often employed. 
trichromatic (tri-kro-mat'ik), a. [< Gr. rptxpu- 
ftarof, three-colored: see trichromic.] Charac- 
terized by three colors; in a specific sense, 
having the three fundamental color-sensations 
of red, green, and purple, as the normal eye, 
in distinction from a color-blind eye, which can 
perceive only two of the fundamental colors. 
trichromic (tri-kro'mik), a. [< Gr. rptif (rpi-), 
three, + XP" ua > color.] Pertaining to three 
colors; trichromatic. 
trichronous (tri'kro-nus), a. [< Gr. rpixpovog, 
of three times or measures, < rptif (rpi-), three, 
-I- xfdvof, time.] In owe. pros., consisting of or 
containing three times or morae ; trisemic. 
trichurt, . A Middle English form of treacher. 
tricing-line (tri'sing-lin), . Naut., a line used 
to trice up any object, either to stow it or to 
get it out of the way. 
tricinium (tri-sin'i-um), n. [LL.,< L. tres (tri-), 
three, + canere, sing.] A musical composition 
for three voices ; a trio. 
tricipital (trl-sip'i-tal), a. [< L. triceps (tri- 
cipit-), three-headed (see triceps), + -al.] In 
linn/., three-headed ; having three origins : as, a 
tricipital muscle. See triceps. 
tricircular (tri-ser'ku-lar), a. Referring to 
three circles Tricircuiar coordinates, homogene- 
ous point-coordinates for a plane, each of which is equal 
to the power of the point relatively to a fixed coordinate 
circle divided by the radius of the circle. A linear equa- 
tion In such coordinates expresses a circle orthogonal to 
the " radical circle " which is orthogonal to the three coor- 
dinate circles ; a quadric equation expresses a bicircular 
quartic ; etc. Tricircular geometry, geometry treated 
by means of tricircular coordinates. 
trick 1 (trik), v. [() Prob. an altered form, 
reverting to the orig. unassibilated form, of 
trich (mod. E. prop, spelled *tritch), < ME. tri- 
chen, tricchen (also perhaps unassibilated *triel'- 
en), < OF. tricher, trickier, trechier (also per- 
haps unassibilated "triquer, *tricquer), deceive, 
trick (cf. Pr. trie, deceit), = It. treccare, cheat, 
< L. tricari, ML. also tricarc, trifle, act deceit- 
fully, < tricee, trifles, toys (see trich, treacher, 
treachery; cf. trick*, n., in the sense of 'trifle, 
toy ') ; (b) the word, as a noun, being appar. 
" influenced by, if not in part derived from, MD. 
treck, D. trek, a trick (een slimme trek, a cun- 
ning trick, jemand eenen trek speelen, play one 
a trick, etc. ) , a word not having the orig. mean- 
ing of ' trick ' or ' deceit,' but a particular use of 
MD. treck, D. trek, a pull, draft, tug, line, < MD. 
trecken, D. trekken, draw : see trick s , and cf. 
track 1 . Cf. F. trigaud, crafty, artful, cunning, 
trigauderie, a sly trick. The words spelled trick 
have been confused in popular apprehension 
and in the dictionaries, and the senses are en- 
tangled. See trick*, trickS, trick*.] I. trans. I. 
To deceive by trickery; cozen; cheat. 
To be wrapt soft and warm in fortune's smock 
When she ... is pleased to trifk or tromp mankind. 
B. Jonson, New Inn, i. 1. 
He was tricked out of the money while he was writing a 
receipt for it, and sent away without a farthing. 
Vanbrugh, Journey to London, Iv. 1. 
2. To bring, render, or induce by trickery ; be- 
guile; inveigle; cajole. 
They were thus tricked of their present 
Bacon, Physical Fables, ii. 
