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GLOSSARY. 



ovpov, our on, urine). A term applied 

 to an acid existing in the urine of 

 horses. 



Hippu'rites (Gr. linros, hippos, a 

 horse ; ovpa, our a, a tail). A genus 

 of plants in the coal-formation, re- 

 sembling the hippuris or mare's 

 tail. 



Hirsute (Lat. hirsu'tus, hairy). In 

 botany, applied to plants having 

 long, distinct, and tolerably soft 

 hairs. 



His'pid (Lat. Us'pidus, rough). Shaggy 

 or prickly ; in botany, applied to 

 plants having Ions; soft hairs. 



Histogen'esis or Histog'eny (Gr. 

 terras, histos, a tissue ; yevvaoo, 

 gennao, I produce). The forma- 

 tion of organic tissues. 



Histolog'ical (Gr. ia-ros, histos, a tis- 

 . sue ; \oyos, logos, discourse). Re- 

 lating to histology or the descrip- 

 tion of tissues. 



Histol'ogy (Gr. 'HTTOS, histos, a tissue; 

 \oyos, logos, discourse). The des- 

 cription of the tissues which form 

 an animal or plant. 



His'tory (Gr. ivTopea, historeo, I 

 learn by inquiry). A narration of 

 events ; a description of things that 

 exist. 



Homo- (Gr. djj-os, homos, the same). 

 A prefix in compound words, signi- 

 fying identity or exact similarity. 



Homocen'tric (Gr. o^os, homos, the 

 same ; Kevrpov, kentron, a centre). 

 Having the same centre. 



Homocer'cal (Gr. b^os, homos, the 

 same ; itepicos, Jccr'kos, a tail). 

 Having a symmetrical tail ; applied 

 to fishes. 



Homod'romous (Gr. 6/u.os, homos, 

 similar ; 5po/j.os, drom'os, a course). 

 In botany, applied to the arrange- 

 ment of leaves on branches in the 

 same manner as on the stem. 



Homoe'o- (Gr. 6/m.oios, homoi'os, 

 similar). A prefix in compound 

 words, implying similarity but not 

 identity. 



Homoeomer'ic (Gr. 6/jioios, homoi'os, 

 similar ; p.epos, meros, a part). 

 Having or relating to similarity of 

 parts. 



Homceop'athy (Gr. 6/0.0105, homoi'os, 



similar ; -rraOos, pathos, suffering). 

 A system by which it is alleged 

 that diseases can be cured by 

 doses of substances capable of ex- 

 citing similar diseased states in 

 healthy pei'sons. 



Homogan'gliate (Gr. 6/j.os, homos, 

 the same ; yayyXiov, gan'ylion, a 

 knot or nervous ganglion). Having 

 the nervous ganglia arranged sym- 

 metrically ; applied to the articu- 

 lated invertebrate animals. 

 Homogen'eous (Gr. 6/j.os, homos, the 

 same ; yews, genos, a kind). Of 

 the same kind ; consisting of ele- 

 ments of a like nature. 

 Homol'ogous (Gr. 6/j.os, homos, the 

 same ; \oyos, logos, reasoning). 

 Constructed on the same plan, 

 though differing in form and func- 

 tion. 



Hom'ologue (Gr. bpos, homos, the 

 same ; \oyos, logos, reasoning), 

 The same part or organ, as far as 

 its anatomical relation is concerned, 

 although differing in form and func- 

 tions ; as the arms of man, the 

 wings of birds, and the pectoral 

 fins of fishes. 



Hcmorogy (Gr. 6fj.os, homos, the 

 same ; \oyos, logos, reasoning). 

 The doctrine of the corresponding 

 relations of parts in different beings, 

 having the same relations but differ- 

 ent functions ; affinity depending 

 on structure, and not on similarity 

 of form or use. 



Homomor'plious (Gr. 6fj.os, homos, 

 the same ; pop^r], morpke, form). 

 Of similar form ; applied to certain 

 insects of which the larva is like 

 the perfect insect, but without 

 wings. 



Homop'oda (Gr. 6/nos, homos, the 

 same ; TTOVS, pous, a foot). A sec- 

 tion of amphipodous crustaceans, 

 having fourteen feet all terminated 

 by a hook or point. 

 Homop'tera (Gr. o^os, homos, the 

 same ; irrepov, ptcron, a wing). 

 Having the four wings alike ; re- 

 stricted to a section of the hemi- 

 pterous class of insects. 

 Hom'otype (Gr. 0^*, homos, the 

 same ; TWITOS, tupos, a type). A 



