GLOSSARY. 



191 



Tri'fid (Lat. tres, three; findo, I 

 cleave). 61eft into three : in 60- 

 tany, divided half way into three 

 parts. 



Triflo'rous (Lat. tres, three; flos, a 

 flower). Having three flowers. 



Trifo'liate (Lat. tres, three ; fo'lium, 

 a leaf). Having three leaves. 



Trifur'cate (Lat. tres, three ; furca, 

 a fork). Having three forks. 



Trig'amous (Gr. rpeis, three ; ya/j.os, 

 gam' os, marriage). Having male, 

 female, and neutral flowers in one 

 head. 



Trigem'ini (Lat. tres, three ; gem'ini, 

 double). Three-double ; a name 

 given to the fifth pair of cranial 

 nerves, which are divided into 

 three branches ; otherwise called 

 trifacial. 



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

 y \v$ii, glufphe, sculpture). In 

 architecture, an ornament repeated 

 at intervals in the Doric frieze, 

 consisting of two gutters or chan- 

 nels cut to a right angle, and sepa- 

 rated by their interstices from each 

 other, and from half-channels at 

 the sides. 



Tri'gon (Gr. rpeis, treis, three ; ycavia, 

 yonia, an angle). A triangle. 



Tri'gonal (Gr. rpiywv, trigon, a tri- 

 angle). Belonging to a trigon or 

 triangle. 



Trigonomet'rical (Trigonom'etry). 

 Relating to, or performed accord- 

 ing to the rules of, trigonometry. 



Trigonom'etry (Gr. rpiyuv, trigTm, a 

 triangle ; /j.erpov, met'ron, a mea- 

 sure). Literally, the art of mea- 

 suring triangles ; but now including 

 all theorems and formulae relating 

 to angles and circular arcs, and the 

 lines connected with them. 



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

 ywvia, go'nia, an angle.) In botany, 

 having three angles, the faces being 

 convex. 



Trigyn'ia (Gr. rpeis, treis, three ; 

 yvvy, gune, a female). An order 

 of plants in the Linnaean system, 

 having three pistils. 



Trihed'ral (Gr. rpeis, treis, three; 

 eSpa, hed'ra, a base). Having 

 three equal sides. 



! , Tri'jugate (Lat. tres, three ; jugum, 



a yoke) In botany, having three 



pairs of leaflets. 

 Trilateral (Lat. tres, three ; la'tus, a 



side). Having three sides. 

 Trilin'gual (Lat. tres, three ; lin'gua, 



a tongue). Written in three lan- 



Trilit'eral (Lat. tres, three ; lilfera, a 

 letter). Having three letters. 



Trilobate (Gr. rpeis, treis, three ; 

 AojSos, lob' os, a lobe). Having 

 three lobes. 



Trilobites (Gr. rpeis, treis, three ; 

 AojSos, lob'os, a lobe). A genus of 

 fossil crustaceous animals, having 

 the upper surface of the body di- 

 vided into three lobes. 



Triloc'ular (Lat. tres, three ; locfulus, 

 a little place). Having three cells. 



Triin'erous (Gr.' rpfis, treis, three ; 

 yiiepos, mer'os, a part.) Having 

 three parts; applied to flowers 

 which have three parts in the 

 calyx, three in the corolla, and 

 three stamens. 



Trim'eter (Gr. rpeis, treis, three; 

 perpov, met'ron, a measure). A 

 verse consisting of three measures. 



TrinerVate (Lat. tres, three ; nervus, 

 a nerve). In botany, applied to 

 leaves having three unbranched 

 nerves extending from the base to 

 the point. 



Trino'mial (Lat. tres, three ; no'men, 

 a name). In algebra, a quantity 

 consisting of three terms. 



Trice'cia (Gr. rpeis, treis, three ; 

 O'IKOS, oi'kos, a house). An order 

 of plants in the Linnsean system, 

 having male, female, and bi- 

 sexual flowers on three separate 

 plants. 



Tripartite (Lat. tres, three; par'tio, 

 I divide)." Divided into three 

 parts ; applied to leaves divided 

 into three parts down to the base. 



Tripet'alous (Gr. rpeis, treis, three ; 

 ireraXov, petfalon, a petal). Having 

 three petals 



Triphthong (Gr. rpeis, treis, three ; 

 (pdoyyrj, phthon'ge, sound). A 

 combination of three vowels in one 

 sound. 



Triphyl'lous (Gr. rpeis, treis, three ; 



