TRIMETHYLENE 



methyl ; amin\ Secalin, (CH 3 ) 3 N. A thin, colorless, 

 alkaline liquid obtained from herring-brine, formerly 

 prepared by the action of caustic alkali on ergot, hence 

 its name, secalin. Used in acute rheumatism internally, 

 or as a liniment I to 3 of glycerin. The hydrochlorate 

 is a soluble, crystalline salt. Dose of trimethvlamin 

 JT\v-3J ; of the hydrochlorate gr. ij-iij. Unof. 

 Trimethylene (tri-meth' -il-in) \_tres, three ; methylene], 

 . [ 6 . A substance obtained by heating trimethylene 

 bromid with metallic sodium. It is a gas. T.-diamin, 



I a ptomain obtained, with other toxic bases, from cul- 

 tures of the comma-bacillus on beef-broth. It causes 

 violent convulsions and muscle-tremor. See Ptomains, 

 Tab 

 Trimethylic (fri - meth - il'-ik) [tres, three; methyl]. 



Containing three molecules of methyl. 

 Trimorphic tri-mor'-fik). Same as Trimorphous. 

 Trimorphism (tri - mor'-fizm) [rpelc, three ; uopoij, 

 form]. I. In biology, a term used to indicate the fact 

 that hermaphrodite flowers of three different kinds, 



I short-styled, mid-styled, and long-styled, are produced 

 on the same species of plant. 2. Existing under three 

 distinct forms, as certain insects. 



Trimorphous (tri-morf -us) [rpeiq, three ; \iap§i), form]. 

 Pertaining to trimorphism. 



Trimyarian {tri- mi-a f -re-an) [rpeiq, three; uvq, a 

 muscle]. In biology, applied to such bivalve mollus- 

 -aelis as present three muscular impressions. 



Trimyristin (tri-mir-is'-tin) [ires, three ; myristin~\. 

 [,(C u H 27 2 ) 3 . A crystalline substance obtained 

 a butter. 



Trinervate (tri-nur'-vdt) [tres, three ; nervus, nerve]. 

 In biology, three-nerved, or having three slender 

 ribs. 



Trinerved (tri' -nurvd). Same as Trinen'ate. 



Trinitrate (tri-ni'-trdt) [tres, three; nitrate]. A nitrate 

 containing three nitric-acid radicles. T. of Glyceryl. 

 Nitroglycerin. 



Trinitrin (tri-ni'-trin). See Nitroglycerin. 



Trinoctial (tri- nok'- shal) [tres, three; nox, night]. 

 Comprising three nights. 



Trinodal (tri-no'-dal) [tres, three ; nodus, knot]. In 

 biology, having three nodes or joints. 



Triocephalus (tri-o-sef '-al-us) [rpeiq, three ; aeoa/.q, 

 head]. A variety of single autositic monsters of the 

 species otocephalus, in which there is an entire absence 

 of the ocular, nasal, and buccal apparatus. The head 

 is merely a small, spheroidal mass, covered uniformly 

 with skin. 



Tricecious (tri-e'-shus). See Triecious. 



Triolein (tri-o'-le-in) [tres, three; oleum, oil], C 3 H 5 

 (O.C^HjjO)^ A glycerol ester containing three oleic- 

 acid radicles. It is a clear, colorless, oily liquid, and 

 is the chief constituent of all fatty acids. See Olein. 



Trional tri'-o-nal) [rpeiq, three], G,H 5 CH 3 — C— (S0 2 - 

 C,H-\. Diethylsulphonemethylmethane. A disul- 

 phone belonging to the ethyl and methyl groups ; in 

 ordinary doses it is harmless and possesses marked 

 hypnotic properties. It is a powder consisting of 



j shining tablets with a melting-point of 76 C, and 

 •vhich dissolve in 320 parts of water at ordinary tem- 



; perature, readily in alcohol and ether, and have a dis- 

 tinctly bitter taste. It is administered in a finely pow- 

 dered state, dissolved in liberal quantities of soup, warm 

 water, milk, or tea, or it may be administered by the 

 rectum in the form of a waterv solution. Dose gr. lx 

 daily. Unof. 

 rrionym [tri'-o-nim) [rpeiq, three ; bi-vua, name]. A 



name consisting of three terms, 

 rriophthalmos (tri-of-thal'-mos) [rpeiq, three; <xj>- 



<to>.u6c,eye]. See Diprosopus. 

 Triopodymus (tri-op-od'-im us) [rpeiq , three ; uif/, the 



1545 



TRIPLET 





face ; di&u/ioq, double]. A monster with three faces 

 and but a single head. 



Triorchid (tri- or* -kid) [rpeiq, three ; bpxtq, a testicle]. 

 Having three testicles. 



Triorchis (tri-or* '- his) [rpeiq, three; bpxtq, testicle]. 

 An individual that has three testicles. 



Triose (tri'-oz). See Glycerose. 



Triosteum (tri-os' '-te-um) [rpeiq, three ; bcreav, bone] . 

 A genus of caprifoliaceous plants of Asia and America. 

 T. perfoliatum (tinkers' weed) and T. angustifol- 

 ium, of the U. S., are purgative and emetic. Unof. 



Triotus (tri-o f -tus) [rpelc, three ; oiq, ear] . See Dipro- 

 sopus. 



Triovulate (tri - ov' '- u - lat) [tres, three; ovulum, an 

 ovule] . Having three ovules. 



Trioxid (tri-ohs / -id) [rpeiq, three; oxid]. An oxygen 

 compound analogous to a trichlorid. 



Tripaleolate [tri-pa'-t'e-o-lat) [tres, three; paleola, a 

 little straw]. In biology, provided with three paleae, 

 as the flower of a bamboo. 



Tripalmitin (tri-pal' -mit-in) [rpeiq, three; palmitin~\, 

 C 3 H 5 (O.C 16 H 31 0) 3 . One of the solid fats of the body. 



Tripapillated (tri-paf/ -il-a-ted) [tres, three; papilla, a 

 nipple]. Having three papillae. 



Tripartite (trip* -ar-tit, or tri-par'-tlt ) [tres, three ; par- 

 tiri, to part, divide]. In biology, three-parted. 



Tripe de Roche (trep-de-rosh') [Fr.]. See Gyrophora. 



Tripennate (tri-pen'-at). Same as Tripinnate. 



Tripes (tri f -pez) [L.]. I. Three-footed. 2. A monster 

 having three feet 



Tripetaloid (tri -pe^-al-oid) [rpeiq, three; Tterakov, 

 leaf]. In biology, appearing as if furnished with three 

 petals. 



Tripetalous (tri-pef '-al-us) [rpeiq, three ; -erd/xiv, leaf]. 

 In biology, three-petaled. 



Tripharmacum (tri-far' -mak-um) [ rpeiq, three ; odp- 

 fiaaov, a drug]. A medicine made up of three ingre- 

 dients. 



Triphenyl (tri-fen f -il) [tres, three; phenyl]. The 

 chemic group (C 6 H 5 ) 3 . T.-amin, (C 6 H 5 ) 3 N, a sub- 

 stance obtained on heating dipotassium anilin or sodium 

 diphenylamin with brombenzene. It crystallizes from 

 ether in large plates, melts at 127 C. , and distils with- 

 out decomposition. T.-dihydro-glyoxalin. See 

 Amarin. T. -methane, C 19 H lg , a product of the reac- 

 tion between benzol chlorid and mercury diphenyl. It 

 dissolves with difficulty in cold alcohol and glacial 

 acetic acid, easily in ether, benzene, and hot alcohol, 

 crystallizing from the latter in thin, shining leaflets, 

 melting at 93 C. T.-rosanilin. See Rosanilin-blue. 



Triphyllous (tri-fil'-us) [rpeiq, three ; QvZ&ov, a leaf]. 

 In biology, three-leaved. 



Tripier's Amputation. In surgery, horizontal section 

 through the os calcis, leaving the upper part of this bone, 

 together with the astragalus. See Operations, Table of. 



Tripinnate (tri-pin' -at) [tres, three ; pinnatus, winged]. 

 In biology, three times pinnately compounded. 



Tripinnatifid (tri-pin-at' '-if-id ) [tres, three ; pinnatus, 

 winged ; findere, to cleave]. Pinnatifid with the seg- 

 ments twice divided in a pinnatifid manner. 



Tripinnatisect (tri-pin-at f -is-ekt )[tres, three ; pinnatus, 

 winged : sectus, cut]. Parted to the base in a tripin- 

 nate manner. 



Triple \ trip' -I) [rpi-x'/.ooq, triple]. Consisting of three. 

 T. Phosphate, ammonio - magnesic phosphate, a 

 precipitate thrown down from urine when ammonia is 

 set free by the decomposition of urea. 



Triplet (trip/ -let ) [tres, three; plica, a fold]. A series 

 of three. In the plural, three offspring at one birth. 

 In optics, a system consisting of three lenses. T., 

 Achromatic. See Microscope. T. Monster, a 

 monster having its parts tripled. 



