before a vowel trich-, ad. Gr. τριχο, τριχ-, combining stem of θρίξ hair, in many terms of botany, zoology, etc. ǁ Trichæsthesia Path. [mod.L., f. Gr. αἴσθησις feeling], a form of paræsthesia consisting in a sensation as of a hair on the skin. ǁ Trichangia sb. pl. [f. Gr. ἀγγεῖον vessel], the capillary blood-vessels; hence ǁ Trichangiectasia, -ectasis Path. [f. Gr. ἔκτασις extension], dilatation of the capillaries. ǁ Trichatrophia Path. [see ATROPHY], atrophy of the hair-bulbs, causing brittleness of the hair. ǁ Trichauxis [f. Gr. αὔξη, αὔξησις increase], excessive growth of hair. ǁ Trichobacteria, (a) the filamentous or thread-like bacteria; (b) bacteria that possess flagella (Dorland, Med. Dict., 1900–13). Trichoblast Bot. [Gr. βλαστός germ, taken as = cell], name for certain special cells or idioblasts resembling hairs. ǁ Trichobranchia Zool. [BRANCHIA], (in pl. -æ), name for the gills, set with filaments, of certain decapod crustaceans; hence Trichobranchial a., pertaining to or of the nature of such gills; Trichobranchiate a., having or characterized by such gills. Trichocarpous a. Bot. [Gr. καρπός fruit], having hairy fruit (Cent. Dict., 1891). ǁ Trichocephalus Zool. [mod.L. (Goeze, 1782), f. Gr. κεφαλή head], a genus of parasitic nematoid worms, having the head filamentous; hence Trichocephalid, a worm of the family Trichocephalidæ, typified by this genus; Trichocephaloid a., resembling or akin to the genus Trichocephalus. ǁ Trichoclasia, -oclasis [Gr. κλάσις fracture], brittleness of the hair. ǁ Trichocryptosis [Gr. κρυπτός concealed], disease of the hair-follicles. Trichocyst Zool. [CYST: named by Allman 1855], one of a number of minute rod-like bodies, each containing a coiled protrusible filament, found in the cuticle of many Infusoria, resembling the thread-cells of cœlenterates; hence Trichocystic a. (Cent. Dict., 1891). ǁ Trichodectes [Gr. δέκτης receiver, beggar], a genus of insects parasitic on quadrupeds; T. lotus is the dog-louse; T. sphærocephalus, the red-headed sheep-louse. Trichodontid Ichthyol., a fish of the family Trichodontidæ [mod.L., f. Trichodon (Tilesius, 1811), f. Gr. ὀδούς, ὀδοντ- tooth], a sand-fish; so Trichodontoid a., akin to the sand-fishes. Trichogen [-GEN], a hypodermal cell, in insects and other arthropods, from which a hair arises. Trichogenous a., producing, or promoting the growth of, hair. Trichoglossine a., Ornith. [Gr. γλῶσσα tongue], belonging to the subfamily Trichoglossīnæ or brush-tongued parakeets, of which Trichoglossus Swainsonii (Swainson’s lory) is a well-known Australian example. Trichogyne Bot. [Gr. γυνή woman], a hair-like process forming the receptive part of the female reproductive organ or procarp in certain algæ and fungi; hence Trichogynial, Trichogynic adjs. Trichomonad Zool. [MONAD 4], an infusorian of the genus Trichomonas, characterized by several flagella and hair-like processes; some species are parasitic in man and other animals. Trichomycterine, -mycteroid adjs., Ichthyol. [Gr. μυκτήρ nostril], belonging respectively to the subfamily Trichomycterīnæ and the family Trichomycteridæ (or Pygidiidæ) of fishes (cat-fishes), found in S. American rivers (Cent. Dict.); also as sbs. Trichonotid Ichthyol. [Gr. νῶτος back; from the long hair-like dorsal ray of the species Trichonotus setigerus], a fish of the family Trichonotidæ; so Trichonotoid a. and sb. Trichopathic a. [Gr. πάθος suffering], relating to diseases of the hair; so Trichopathy [-PATHY], treatment of diseases of the hair. Trichophocine a., Zool. [Gr. φώκη seal], belonging to the subfamily Trichophocīnæ or hair-seals (Cent. Dict.). Trichophore [Gr. -φόρος bearing], (a) Bot. (see quot. 1860: ? obs.); (b) Bot. the structure that bears the trichogyne in florideous algæ; (c) Zool. one of several projections of the integument in certain annelids, from which spring bundles of setæ or bristles; Trichophoric a., pertaining to or of the nature of a trichophore; Trichophorous a., bearing hairs or hair-like bodies; of the nature of a trichophore. Trichopter Entom. [Gr. πτέρον wing], a member of the group Trichoptera of neuropterous insects, characterized by specially hairy wings; a caddis-fly; so Trichopteran a. = trichopterous; sb. = trichopter; Trichoptorist, one who studies the Trichoptera; Trichopterous a., belonging to or having the characters of the Trichoptera, hairy-winged. Trichopterygid Entom. [Gr. πτέρυξ wing], sb. a member of the family Trichopterygidæ of clavicorn beetles, having the wings fringed with hairs, and comprising the smallest beetles known; a. belonging to or having the characters of this family; so Trichopterygoid a. Trichoptile Ornith. [Gr. πτίλον down], a hair-like prolongation of the sheath of a growing feather, forming part of the downy covering of the young of certain birds; hence Trichoptilar a., pertaining to or of the nature of a trichoptile. ǁ Trichorrhœa [Gr. -ῤοια flowing], falling off of the hair. ǁ Trichoschisis [Gr. σχίσις splitting], splitting of the hair. Trichosomatous a., Zool. [Gr. σῶμα body], belonging to the division Trichosomata of flagellate Infusoria. ǁ Trichosporangium, pl. -ia (also anglicized trichosporange) Bot., Thuret’s term for the multilocular sporangium of certain fucoid algæ, which appears to consist of jointed hairs (distinguished from OOSPORANGIUM); hence Trichosporangial a. Trichospore Bot., a spore or conidium borne upon a filamentous stalk, in certain fungi. Trichostomatous a., Zool. [Gr. στόμα mouth], belonging to the order Trichostomata of Protozoa, having the mouth and pharynx provided with vibratile membranes and cilia, by the movements of which particles of food are drawn in. Trichothallic a., Bot. (see quots.).
1902. Nature, 7 Aug., 360/1. On a new form of tactile sensibility, *trichesthesia, by MM. N. Vaschide and P. Rousseau.
1857. Dunglison, Med. Lex., *Trichangia … *Trichangiectasia.
1890. Billings, Nat. Med. Dict., *Trichangiectasis … *Trichatrophia … *Trichauxis.
1882. Vines, Sachs’ Bot., 85. These cells … present the appearance, when the petiole is broken across … of tough, slender hairs projecting out of the tissue. For idioblasts of this kind I [Sachs] propose the term *Trichoblast, in order to express their resemblance to many epidermal trichomes.
1878. Proc. Zool. Soc., 4 June, 776. They … may be called *‘trichobranchiæ,’ in contradistinction to the lamellar gills or ‘phyllobranchiæ,’ which are met with in a large number of other Crustacea.
1891. Cent. Dict., *Trichobranchial.
1878. Proc. Zool. Soc., 4 June, 777. Among the *trichobranchiate Podophthalmia, the Euphausidæ possess no other than podobranchiæ.
1880. E. R. Lankester, in Nature, 12 Feb., 355/2. Crayfishes … differ from prawns … in being ‘trichobranchiate’ in place of ‘phyllobranchiate.’
1819. Pantologia, *Trichocephalus, a genus of the class vermes.
1846. Proc. Amer. Phil. Soc., IV. 232. He had found the tricocephalus in the human cœcum after death.
1897. Allbutt’s Syst. Med., II. 1048. Found in association with a high degree of trichocephalus infection.
1895. Funk’s Standard Dict., *Trichoclasia … *Trichoclasis.
1890. Billings, Nat. Med. Dict., *Tricho-cryptoses.
1900–13. Dorland, Med. Dict., Trichocryptosis.
1859. J. R. Greene, Man. Anim. Kingd., Protozoa, 66. In the cortical layer of Bursaria, certain peculiar fusiform bodies or *‘trichocysts’ have been detected, and from these Prof. Allman states that he has observed the emission of minute filaments [resembling] the urticating organs of the fresh-water polype.
1880. Kent, Infusoria, I. 249. A shcaf-shaped fascicle of rod-like trichocysts.
1876. trans. Beneden’s Anim. Parasites, 71. The *trichodectes of the dog has lately attracted the especial notice of naturalists.
1898. Packard, Text-bk. Entomol., 188. Each of these pores communicates with a hair-forming hypodermal cell, called by Graber a *trichogen.
1853. E. Wilson, Healthy Skin (ed. 4), Index, *Trichogenous remedies.
1879. A. R. Wallace, Australas., iii. 59. The *Trichoglossidæ, or brush-tongued Lories.
1875. Bennett & Dyer, trans. Sachs’ Bot., 212. The term *Trichogyne is given to a long thin hair-like hyaline sac, which serves as a receptive organ, and springs from a structure … called the Trichophore. The latter is a body usually consisting of several cells.
1877. Huxley, Anat. Inv. Anim., Introd. 29. The protoplasmic body of the trichogyne, which unites with the spermatozooids, does not undergo division itself.
1882. Vines, Sachs’ Bot., 238.
1900. B. D. Jackson, Gloss. Bot. Terms, *Trichogynial, relating to a trichogyne.
1891. Cent. Dict., *Trichogynic.
1861. Hulme, trans. Moquin-Tandon, II. VII. 407. The *Trichomonads … form irregular masses with the particles of thickened mucus.
1889. J. M. Duncan, Clin. Lect. Dis. Wom., xxii. (ed. 4), 179. At one time it was supposed that the discovery of trichomonads, or a leptothrix, or a vibrio, would decide whether it was venereal or not.
1891. Cent. Dict., *Trichopathic.
1900–13. in Dorland, Med. Dict.
1860. Mayne, Expos. Lex., *Trichopathy, a term proposed … for the system of treating diseased affections of the hair. Ibid., Trichophorus.… Namne by Nees von Esenbeck for the filamentous base of mushrooms, when the filaments, by their agglutination, form a kind of membrane: a *trichophore.
1875. [see trichogyne].
1877. Huxley, Anat. Inv. Anim., v. 229. Stiff hair-like appendages … developed within diverticula of the integument, or trichophores, in which their bases always remain enclosed.
1882. Vines, Sachs’ Bot., 238. In the true Florideæ … a lateral row of cells bears at its apex a closed hair-like prolongation, the trichogyne, and is hence termed the Trichophore.
1891. Cent. Dict., *Trichophoric.
1892. Jrnl. Linn. Soc., Bot., XXIX. 74. Not unfrequently this trichophoric apparatus consists of three cells—two basal trichophoric cells and the trichogyne.
1864. Webster, *Trichopter.
1826. Kirby & Sp., Entomol., IV. xlvii. 379. The existence … of the collar in the *Trichoptera.
1835. Kirby, Hab. & Inst. Anim., II. xx. 318. The Trichoptera (Caseworm-flies) have four hairy membranous wings.
1842. Brande, Dict. Sci., Art, etc., *Trichopterans.
1897. Naturalist, 115. Neuropterists and *trichopterists have commenced … as lepidopterists.
1816. Kirby & Sp., Entomol. (1818), II. xxi. 243. Phryganea grandis … is a *trichopterous insect. Ibid. (1826), IV. xlvii. 375. There is no tendency in the saw-flies towards a Trichopterous type.
1891. Cent. Dict., *Trichopterygid.
1895. Funk’s Standard Dict., *Trichopterygoid.
1900. Ibis, Oct., 665. The actual feather-sheath makes its appearance, pushing before it its *trichoptilar appendage, which has now become abraded. Ibid., 654. I shall term these thread-like structures *trichoptiles.
1860. Mayne, Expos. Lex., *Trichorrhœa.
1857. Dunglison, Med. Lex., *Trichoschisis.
1891. Cent. Dict., *Trichosporange.
1900. in B. D. Jackson, Gloss. Bot. Terms.
1887. Trans. Roy. Soc. Edin., XXXII. 591. The *trichosporangial form [of fruit of Ectocarpus] is well known.
1857. Berkeley, Cryptog. Bot., § 67. 88. The two organs called Oosporangia and *Trichosporangia by Thuret.
1909. Cent. Dict., Suppl., *Trichostomatous.
1890. Athenæum, 29 Nov., 743/1. The formation of the plantlets by *trichothallic gemmation from the tufts of … hairs … on the old thallus of P[unctaria] plantaginea and P. latifolia.
1900. B. D. Jackson, Gloss. Bot. Terms, Trichothallic … when the shoot ends in one or more multicellular hairs or tufts of such.
