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GLOSSARY. 



Taenioid (Gr. ratvia, tainia, a 

 ribbon ; eiSos, eidos, a form). 

 Shaped like a ribbon, as the tape- 

 worm. 



Talc. A mineral consisting of mag- 

 nesia, potash, and silica, closely 

 resembling mica, arranged in broad, 

 flat, smooth plates, translucent 

 and often transparent. 



Taliaco'tian Operation. In surgery, 

 the operation of forming a new- 

 nose from the skin of the forehead 

 or other part of the face. 



Ta'lipes (Lat. talus, an ankle ; pes, 

 a foot). A deformity known as 

 club-foot. 



Tan'gent (Lat. tango, I touch). In 

 geometry, a straight line which 

 touches a cii'cle or curve in one 

 point, and which, being produced, 

 does not cut it. 



Tan'nic (Tan). Applied to an acid 

 existing in oak-bark, and in which 

 depends its efficacy in tanning. 



Tape'tum (Lat. a carpet). The 

 coloured layer of the choroid coat 

 of the eye. 



Taphrea'cftyma(Gr. ra<t>pos, taph'ros, 

 a ditch ; 67X U M, en'chuma, tissue). 

 A name for pitted vessels in vege- 

 tables. 



Tar'digrade (Lat. tar'dus, slow ; 

 grad'ior, I step). Advancing 

 slowly. 



Tarsal (Tarsus). Belonging to the 

 instep, or to the cartilage of the 

 eyelid. 



Tar'sus (Gr. rapffos, tarsos, a flat 

 surface). The instep ; the carti- 

 lage supporting each eyelid ; also 

 the last segment of the legs of 

 insects. 



Tartarlc (Tartar, a deposit from 

 wines). Applied to an organic acid 

 which exists in tartar, and which is 

 found in the juice of grapes and 

 other fruits. 



Tartari'sed (Tartar). Impregnated 

 with t;wtar. 



Tar'trate (Tartar}. A neutral com- 

 pound of tartaric acid with a base. 



Tau'rine (Lat. taurus, a bull). Re- 

 lating to a bull. 



Taxider'my (Gr. To<r<ro>, tasso, I put 

 in order ; Sep/ia, derma, skin). 



The art of preparing and preserving 

 the skins of animals in their natural 

 appearance. 



Taxis (Gr. racro-w, tasso, I put in 

 order). In surgery, a process by 

 which parts that have left their 

 proper situation are replaced by the 

 hand without the aid of insti u- 

 ments. 



Taxon'omy (G* rais, taxis, ordei ; 

 vo/jios, nom'os, law). The depart- 

 ment of natural history which 

 treats of the laws and principles of 

 classification. 



Tech'nical (Gr. rfX v ^ techne, art). 

 Relating or belonging to a science 

 or art. 



Technology (Gr. rex"??, techne, art ; 

 \oyos, log'os, discourse). A des- 

 cription of arts or of the terms 

 used in arts. 



Tectibran'chiate (Lat. tectus, covered; 

 Gr. fipayxia, bran'chia, gills). 

 Having covered gills ; applied to 

 mollusca in which the gills are 

 covered by the mantle. 



Teg'men (Lat. teg'o, I cover). See 

 Tegument. 



Tegmen'tum (Lat. teg'o, I cover). 

 The scaly coat covering the leaf- 

 buds of deciduous trees. 



Teg'ument (Lat. teg'o, I cover). A 

 covering ; in anatomy, the skin ; 

 in botany, see Tegmentum ; in 

 entomology, the covering of the 

 wings of the orthoptera, or straight- 

 winged insects. 



Tegumen'tary (Tegument). Belonging 

 to or consisting of teguments or 

 coverings. 



Telangiec'tasis (Gr. *re\os, tel'os, an 

 end ; ayyeiov, angei'on, a vessel ; 

 tttTeivw, ektein'o, I stretch out). 

 Distension of the vessels. 



Tel'egram (Gr. rrjAc, tele, at a dis- 

 tance ; ypcKpca, graph' o, I write). 

 A message communicated by a 

 telegraph. 



Tel'egraph. (Gr. ry\, tele, at a dis- 

 tance ; ypaffxa, graph'o, I write). 

 An instrument for communicating 

 messages or news from a distance 

 by means of signals representing 

 letters or words : to transmit by 

 means of a telegraph. 



