TrichocephaltiB 
2. [1. t:] The detached hecto.-otyli/.ed tliird 
left arm of the male itrgonaiit, deposited in the 
pallial cavity of the female, and regarded ;i- :i 
parasite by f)elle Chiaje, who called it Triflnn-i - 
/iliiilux iiciliilnilarin, making the word a pseudo- 
geueric name. See cut under .\r<jintnti<\;i'. 
trichocladose (tri-kok'la-dos), . f < Gr. rpixa, 
iu three ( < r/w n; (rpi-), three), + *Mot>{, branch.] 
Trifid or trichotomous, as thecladi or brunches 
of a cladomo. See triinn: Nnllnx. 
Trichocladus(tri-kok'la-dus),M. [NL. (Persoou, 
1807), so called with ref'.'to the woolly branches, 
< Or. flp/f (rpix-), hair, + it/tddor, branch.] 1. 
A genus of polypetalous shrubs, of the order 
Uamamelideie, distinguished from the type ge- 
nus Hamnincl'm by mucronate anthers, and flow- 
erswiththe ]iarts in lives. The i> species are natives 
of South Africa. They are evergreen shrubs with opposite 
or alternate entire leaves, and white flowers densely ag- 
gregated into small terminal heads, bearing long narrow 
petals with revolute margins, the pistillate fluwers aneta- 
Ions. T. tUiiMcui is remarkable for the reddish wool cloth- 
ing the under surface of the leaves ; and T. crinitiu, the 
hairbranch-tree, for Its brauchlets and petioles, which are 
hirsute with blackish hairs. 
2. [/. c.] In zool., a trichocladose sponge-spic- 
ule. 
trichoclasia (trik-o-khVsi-a), M. [< Gr. 0pi( 
(rpix-), hair, 4- n).aai<;, a fracture.] A brittle 
condition of the hair. Also triehoclasis. 
trichocryptosis (trik'o-krip-to'sis), n. [NL., < 
Gr. 6pif (rpix-), hair,+ Kpvm6(, hidden, 4- -osit>,] 
Inflammation of the hair-follicles. 
trichocyst (trik'o-sist), n. [< Gr. 0pif (rpix-), 
hair, + nvarif, bladder: see cyst.] A hair-cell; 
one of the minute rod-like or hair-like bodies 
i the subcuticular layer of many in- 
6469 
or red colors. One set of species has a short broad tall ; 
these are the broad-tailed lories, as of the genera Doiiti- 
ceUa nnd Coriphilut (aee cut under domutua); hut On 
most characteristic representatives are wedge-tailed. 
trichoglossine (trik-o-glos'ini, n. Of or per- 
taining to the Tmliiiijlossina. 
Trichoglossus (trik-$-lo'M), . [ NL. (Vigors 
and Horsfield, 18'_T>), < Or. Opif (rpix-), hair, + 
yhuooa, tongue.] The leading genus of Trirho- 
ijlossinte, used with varying limits; the lories 
most properly so called. All are brush-tongued and 
wedge-tailed ; they are of moderate or small slxr, and 
Trichonotos 
aud niinilniliiiii-.} A lar^e ^enus of Iiymeno- 
phyllai'etms ferns, liiiviii^the sori mar|ri mil, ter- 
minating" vein, and [nor ' le-.. sunken in the 
I'nmd. '1 he sporangia are sesalle on Ihe lower part of 
a cylindrical, ttllfonn, usually elongated receptacle, and 
Swainson's Lory ( TritkaglossMi 
chiefly green and red. The genus in a usual acceptation 
contains about 40 species, or half of the TVfcAopfcuwur. 
Swainson's lory of Australia Is a characteristic example, 
mostly green, beautifully varied with red, blue, and yel- 
low. 
Trichogramma (trik-o-gram'a),n. [NL. ^West- 
cells of coelenterates. 
trichocystic (trik-o-sis'tik), a. [< trichocyst + 
-ic.] Pertaining to or having the character of 
trichocysts : as, a trichocystic formation. 
Trichoda (tri-ko'da), n. [NL., < Or. rp/judw, 
contr. of rp<;ro%,likeahair, < fy't ( T P'X_-)> hair, 
+ rMof, form.] A genus of ciliate inf usorians, es- 
tablished by 6. P. Mttller in 1786, giving name to 
the former family Trichodidir (or Trichodina). 
Many animalcules have been referred to this genus which 
are now excluded from it It Is now placed In the family 
Ovhryoglenidx, and retained for such species as T. car- 
iii'iHii, found in putrid Infusions, and T. pirvm, of pond- 
water. These closely resemble forms of Etickelyt, but have 
a minute vibratile membrane Inclosed in the oral fossa. 
They are free-swimming, elastic, but of somewhat per- 
sistent ovate or pyrlform figure with the mouth at the 
obliquely truncated anterior end, approached by an oval 
peristome ; the general cutlcular surface is finely ciliated 
throughout, and a circlet of longer cilia surrounds the 
oral fossa. 
Trichodectes (trik-o-dek'tez), n. [NL. 
(Nitzsch),< Gr. 0p/f (rpix-), hair, + MKTIK, taker, 
< AentaOai, AexeaSai, receive, take.] A genus of 
mallophagous insects. T. upharocephalta is the red- 
headed sheep-louse, found In the wool of sheep In Europe 
and America. See sheep-lmae, t. 
Trichodon(trik'9-dou), n. [NL. (Cuvier, 1829, 
after Steller), < Gr. 8pif (rpix-), hair, 4- 6<5m>f 
(biovr-) = E. tooth.] The typical genus of the 
family Trichodontidx. T. stelleri, the sand-fish, 
is found in Alaska and south to California. See 
_cut under sand-fish. 
"),n.pl. 
it. 
Trichograntma mi'niita. 
a, fly with wings folded ; *, front wing ; f , hind wing ; rf, leg : 
e, antenna. (All enlarged. ) 
parasites, of the family Chalcididse, and typical 
of the subfamily Trichoqramminee. One rare spe- 
cies is known in Europe, but several are found in North 
America, where the Individuals are extremely abundant, 
as of T. minuta. They are all parasitic in the eggs of 
lepidopterous Insects and of sawnies. 
TrichogramminsB (trik'6-gra-mi'ne), n. pi. 
[NL. (L. O. Howard, 1885), < Trichogramma 4 
-in*.] A subfamily of parasitic hymenopters, 
of the family Chalcididse, containing the small- 
est species of the family, characterized by their 
three-jointed tarsi (thus forming the section 
Trimera) and the regular fringe of minute bris- 
tles on the wings. They vary In color from bright 
yellow to reddish brown, and are all parasitic In the ten 
of other Insects. Also Trichogrammatmdit (Korster, 1856). 
See cut under Trichofframma. 
Gr. 6pii- 
chtiifan ; the sand-fishes. 
trichodontoid (trik-6-don'toid), n. and a. I. 
. A fish of the family Trichodontidse. 
II. a. Of, or having characters of, the Tricho- 
dontidse. 
trichogen (trik'o-jen), n. [< Gr. Opit; (rpix-), 
hair, 4- -yeviK, producing: see -gen.] A sub- 
stance or preparation used for promoting the 
growth of the hair. 
trichogenous (tri-koj'e-nus), a. [As trichogen 
+ -mix.] Encouraging the growth of hair. 
Trichoglossidae (trik-o-glos'i-de), . pi. [NL., 
< Trichoglossu* + -iaje.] The Trichoglossinse 
ranked as a family. 
Trichoglossinse (trik'o-glo-si'ne), w. pi. [NL., 
< TrieKogtottm + -/.] A subfamily of Psit- 
taeidif, typified by the genus Trichoglossus, and 
inexactly synonymous with Loriinse, or includ- 
ing the latter ; the brush-tongued parrakeets, 
among the small parrots called lories and lori- 
keets. With the exception of the genus Corylli* or Lo- 
rtcu/tu (usually put here, but probably belonging else- 
where), these parrakeets have the tongue brushy, beset 
with papilla; or filaments, and used for licking the nectar of 
flowers and the soft pulp of fruits. There are more than 
80 species, characteristic of the Australian regions and 
Polynesia, hut also extending into the Malay countries. 
They are among the smaller parrots, and of chiefly green 
phoric part of the procarp of certain crypto- 
gams, and serving as a receptive organ of re- 
production. See procarp, Floridese. 
' TlOgynic (trik-o-jin'ik), a. [< trichogvne 
ic.] In bot., of or pertaining to the tricho- 
e. 
(trik-o-lo'ji-a), . [NL., < Gr. as if 
-otoyriv. pluck hairs (as a symp- 
, hair, 4- Myeiv, gather, pick.] 
trichology (tri-kol'o-ji), . [< Gr. OpU- (rpix-). 
hair, 4- -Aoyfo, < Myeiv, speak: see -ology.] The 
science treating of the anatomy, diseases, func- 
tion, etc., of the hair. 
trichoma (tri-ko'mS), n. [NL., < Gr. rpixupa, 
a growth of hair, < rpixovv, furnish or cover with 
hair, < flpt'f (rpix-), hair.] 1. In pathot., an af- 
fection of the hair, otherwise called plica. 2. 
In hot., one of the cellular filaments which form 
the substance of a suborder of algn. the Nosto- 
chineie. Farlow, Marine Algse, p. 11. 
fort, 1700), < Gr. rpixo/iavtc., a kind of fern (cf. 
rpixofiavia, a passion for long hair, rpixopaveiv, 
have a passion for long hair), < 6pif(rpix-), hair, 
+ aiVeofti(,be mad. Cf. the E. names bristle-fern 
Brittle fern ( Triclitmftai 
the Indusla are tubular or funnel-shaped, and entire or 
two-lipped at the mouth. About 100 species are known, 
natives of tropical and temperate countries. Including two 
in the southern Cnlted States. All are popularly called 
brutlc-/rrm. See bnMt-fern, and out (<) under *orui. 
trichomaphyte (tri-kom'a-fit), n. [< Gr. rpix<+- 
fia, a growth of hair (see "trichoma), 4- ^wov, a 
plant.] A cryptogamic growth which was for- 
merly thought to be the cause of trichoma. 
trichbmatO8e(tri-kom'a-t68),a. [< trichoma(t-) 
4- -one.] Matted or agglutinated together ; af- 
fected with trichoma : said of hair, 
trichome (tri'kom), n. [< NL. trichoma, q. v.] 
An outgrowth from the epidermis of plants, as 
a hair, scale, bristle, or prickle. These may be 
very various in form and function, but mor- 
phologically they have a common origin. 
Trichomonadidae (trik'o-mo-nad'i-de), n. pi. 
[NL., < Trichotnonas (-monad-) 4 -ida.] A 
family of flagellate iufusorians, characterized 
by the tapering form posteriorly, and the de- 
velopment of several flagella and bodies like 
trichocysts at the anterior extremity. 
Trichomonas (tri-kom'6-nas), . [NL. (Ehreu- 
berg, 1838), < Or. 0pi (rpix-), hair, + fiov&f , sin- 
gle.] The typical genus of Trichomonadida. T. 
melolonthte infests the cockchafer. T. taginalin 
is found in the secretions of the human vagina, 
trichomycosis (trik'o-mi-ko'sis), n. [NL., < 
Gr. 0pi( (rpix-), hair, 4- //f?r, fungus, T -otis.] 
Same as tinea'. 
Trichomycteridae (trik'o-mik-ter'i-de), . pi. 
[NL., < Trichomycterm 4- -id.] A family of 
fishes : same as Pyijidiidie. 
Trichomycterinse (trik-o-ruik-te-ri'ne), n. j>C. 
[NL., < Tricliomycteriis 4- -!?.] A subfamily 
of trichomycteroid fishes, with the dorsal fin 
posterior, and behind the vent ra Is when the lat- 
ter are present. It includes most species of the 
family. Also Trichomycterina and Pygidiina. 
trichomycterine (trik-o-mik'te-rin), a. and n. 
I. a. Of, or having characters of, the Tricho- 
mttctrrime. 
'n. . A fish of the subfamily Trtchomycte- 
rinee. 
trichomycteroid (trik-o-mik'te-roid), a. and n. 
I. a. (5f, or having characters of, the Tricho- 
mycteridje. 
II. . A fish of the family Trichomycteridsp. 
Trichomycterus (trik'o-mik-te'rus), n. [NL. 
(Cuvier and Valenciennes, 1846), < Gr. Spif 
(rpix-), hair, 4- /ivtrrfp, nostril.] Same as Pygi- 
dium, 2. 
Trichonotidse (trik-9-not'i-de), . til. [NL., < 
Trichonotus + -ida.] A family of acanthopte- 
rygian fishes, represented by the genus Tricho- 
initii*. 
trichonotoid (trik-o-no'toid), a. and . I. . 
Of or relating to the Trichonotidse. 
II. . A fish of the family Trichonotidx. 
Trichonotus(trik-6-n6'tus), n. [NL.^Bloch and 
Schneider, 1801 ),< Gr. Sp/'f (rpix-), hair, 4- varof, 
back.] 1. In ichth., the typical genus of Tri- 
chonotidse: so called from the long filamentous 
anterior dorsal ray of T. setigertis, the original 
species. The body is long and subcj lindrical, with 
