192 



GLOSSARY. 



<pv\\ov, phul'lon, a leaf). Having 

 three leaves. 



Tripin'nate (Lat. tres, three; pin'na, 

 a feather). In botany, applied to 

 leaves in. which there are three 

 series of pinnation ; bipinnate 

 leaves being again divided down to 

 the base of each division. 



Triplicate (Lat. tres, three; plicfo, I 

 fold). Three-fold : applied to the 

 ratio which the cubes of two 

 quantities bear to each other as 

 compared with the ratio which 

 the two numbers bear to each 

 other. 



Triplicos'tate (Lat. tri'plex, three- 

 fold ; cos'ta, a rib). In botany, 

 applied to leaves which have three 

 ribs proceeding from above the 

 base 



Trip'tote (Gr. rpeis, treis, three ; 

 7rra><m, ptosis, case). A noun 

 having three cases only. 



Triquet'rous (Lat. triquetfra, a tri- 

 angle). Having three sides; in 

 botany, having three angles, the 

 faces being concave. 



Trira'diate (Lat. tres, three ; ra f - 

 dius, a ray). Having three rays. 



Trisecf (Lat. tres, three ; sec'o, I 

 cut). To divide into three equal 

 parts. 



Trisec'tion (Trisect). Division into 

 three parts. 



Trisep'alous (Lat. tres, three ; sep'al). 

 Having three sepals. 



Tris'mus (Gr. TptC, tri'so, I gnash). 

 Lock-jaw ; a kind of tetanus affect- 

 ing the muscles of the jaw. 



Trisoctahed'ron (Gr. rpis, tris, three 

 times ; OKTOJ, oWto, eight : 45pa, 

 hed'ra, a base). A figure having 

 twenty-four equal faces. 



Trisper'm<ras (Gr. rptis, treis, three ; 

 0-nepfj.a, spcr'ma, seed). Having 

 three seeds. 



Tris'tichous (Gr. rpeis, treis, three ; 

 CTTIXOS, stick' os, a row). In three 

 rows. 



Trisul'cate (Lat. tres, three ; sul'cus, 

 a furrow). Having three forrows. 



Tri'syllabic (Gr. rpeis, treis, three; 

 ffv\\a@r), sul'labe, a syllable). 

 Having three syllables. 



Tri'syllable (Gr. rpeis, treis, three ; 



<rv\\afi-ri, sul'labe, a syllable). A 

 word of three syllables. 



Tritern'ate (Lat. tres, three ; ternate). 

 Divided three times in a ternate 

 manner. 



Tritox'ide (Gr. rpiros, tri'tos, third ; 

 oxide). The third degree of oxida- 

 tion of a body. 



Trit'urate (Lat. tritu'ra, a threshing 

 or grinding). To rub or grind to a 

 very fine powder. 



Tritura'tion (Trit'urate). The act of 

 reducing to a very fine powder. 



Trival'vular (Lat. tres, three ; valvce, 

 folding-doors). Having three valves. 



Triv'ial (Lat. tritium, a highway). 

 Common ; trifling; in botany, ap- 

 plied to the name of the species, 

 which, added to the generic name, 

 forms the name of the plant. 



Tro'car (Fr. trois quart, three- 

 quarters, from its triangular point). 

 A surgical instrument used in 

 tapping. 



Trochaic (Troch'ee). Consisting of 

 trochees. 



Trochan'ter (Gr. Tpoxafc, trocka'zo, 

 1 run along). In anatomy, a name 

 given to two prominences at the 

 upper part of the thigh-bone, in 

 which are inserted several of the 

 muscles used in motion. 



Tro'che'(Gr. rpoxy, troch'e, awheel)). 

 A form of medicine in a circular 

 cake for dissolving in the mouth. 



Tro'chee (Gr. rpex<, trech'o, I run). 

 A foot in verse consisting of two 

 syllables, the first long, the next 

 short. 



Tro'chifonn (Gr. rpoxos, troch'os, a 

 wheel ; for'ma, shape). Resem- 

 bling a wheel. 



Troch'lea (Gr. rpexa>, trech'o, I run). 

 A pulley ; applied in anatomy, to 

 projections of bones over which 

 parts turn as over pulleys. 



Troch'oid (Gr. rpoxos, troch'os, a 

 wheel ; etSos, ei'dos, shape). In 

 geometry, a curve produced by the 

 motion of a wheel. 



Trochom'eter (Gr. rpoxos, trock'os, 

 a wheel ; perpov, met' r on, a mea- 

 sure). An instrument for com- 

 puting the revolutions of a wheel. 



Trope (Gr. rpeirw, trep'o, I turn). In 



