II 



RHIZOCARPOUS 



1269 



RHODOMEL 



hizocarpous (ri - zo - kar 1 '- pus) \pK a , root; Kap-zbc, 

 fruit]. In biology, a term sometimes applied to her- 

 baceous plants whose roots live on from year to year, 

 hizocaul (ri'-zo-kazcl) [pi± a , root; nav'/.bc, stalk]. In 



. the portion of a polyp by which it is fastened 



;:port. 

 hizocephalous (ri-zo-sef ' -al-us) [pm*, root; keoo'/.tj, 

 nead]. In biology, rooted by the head, 

 hizodontropy (ri-zo-don' -tro-pe) [pi^a, root ; bdoig, 

 ooth; rpo-rj, turn, pivot]. The pivoting of an arti- 

 ricial crown upon the root of a tooth, 

 '.lizodontrypy (ri-zo-don' -trip-e) [pi^a, root ; bbovc, 

 tooth: -rpi'TVT], hole]. The surgical puncture of the 

 root of a tooth. 



lizogen (ri'-zo-jen) [/«£<*> root; ytvr/g, producing]. 

 A plant parasitic upon the roots of another plant. A 

 part or organ from which roots or root-hairs grow, 

 lizogenic [ri-%o-jen f -ik) \_'pi^a, a root ; yex'hg, produc- 

 ing]. In biology, root-producing. A term applied 

 to the cells in the pericambium, just in front of a 

 xylem ray of a fibro-vascular bundle, and which give 

 origin to root-branches. 



aizography (ri-zog'-ra-fe) [pi^a, root ; ypafyetv, to 

 write]. A descriptive treatise on the roots of plants, 

 aizoid (ri'-zoid) [in^a, root ; eldof, form]. In biol- 

 ogy, slender, root-like filaments, the organs of attach- 

 ment in many cryptogams ; like a root, 

 nizoma (ri-zo / -mah) [p<^u/uz: pi., Rhizomata~\. Same 

 as Rhh 



lizomania (ri-zo-ma' -ne-ah) [pi^a, a root; fiavia, 

 madness]. In biology, an unusual or abnormal devel- 

 opment of adventitious roots. 



aizomatoid \ri-zo'-mat-oid) [pi'^wua, a mass of roots; 

 e'ibog, resemblance] . Resembling a rhizome, 

 hizome (ri'-zom) [pvi, root]. In biology, a prostrate 

 or subterranean stem, having roots at its nodes and a 

 bud or shoot at its apex. 



hizomorph iri'-zo-morf) [p/£a, root; popon, form]. 

 In biology, the long, flocculent mycelium of several 

 species of Agaricus. 



hizomorphoid (ri-zo-mor' -foid) [pi^a, root ; uopor;, 

 form ; eldoc, form]. Having the form of a root. 

 nizomorphous ri-zo-mor'-fus) \_pi^a, root; poppy, 

 form]. In biology, in shape and appearance like a root, 

 nizonychia n-z:-nik'-e-ah) \j>i^a, a root ; bivz, the 

 nail]. The root of the nail. 



nizonychial f ri-zo-nik f -e-al) [p«'C a > root : bw%, naii]. 

 Pertaining to a rhizonychium. 



aizonychium (ri-zo-nik' -e-um) \_pi^a, root ; bvv:. a 

 claw : //. , Rhizonichia\ In biology, the claw-bearing 

 phalanx of a digit. 



lizophagous (ri-zoff'-ag-us) [p^opfl/oc, eating roots]. 

 Root-eating. 



aizophora ri-zoff'-or-ah) [pKa, a root ; $opoq, a bear- 

 ing]. Mangrove. In its several varieties it is used 

 medicinally. 



tizophore (ri'-zo-for) [pi^a, a root ; popog, bear]. In 

 Selaginella a leafless shoot, which grows downward 

 and from the end of which the true roots originate as 

 soon as it penetrates the ground. 



lizophorous (ri-zoff' -or-us) [pi^a, root; oepeiv, to 

 bear]. In biology, root-bearing, 

 lizophyto-alopecia (ri-zoff-it-o-al-o-pe'-se-ah) [pi r a, 

 a root ; ovzov, a plant ; akuneiua, alopecia] . Synonym 

 °f Trichomycosis circinala. 



lizopod (ri'-zo-pod) \piZ,a, root; jrotc, foot]. A 



' member of the Rhizopoda, a sub-class of Protozoa or 



animalcules. Locomotion and ingestion of food take 



place by means of pseudopodia, which at times fuse 



; and form a reticulum. 



hizopodium (ri-zo-peZ-de-um) [pi^a, a root; irovg, 

 foot]. In biology, the mycelium of fungi. 



Rhizotaxis (ri-zo-taks'is) [p/£«, root ; rdf*c, order]. In 

 biology, the arrangement of roots. Cf. also Phyllo- 

 taxis. 



Rhizotaxy (ri'-zo-taks-e). Same as Rhizotaxis. 



Rhodacne (rod-ak'-ne) \p66ov, a rose ; ann?, acne] 

 Synonym of Acne rosacea. 



Rhodalose (ro> '-dal-oz) [podov, rose ; a/g, salt]. Sul- 

 phate of cobalt. 



Rhodamin (ro' -dam-in) \_po-5ov, rose ; amin\. A violet- 

 red, magnificently fluorescent dyestuff, analogous in 

 constitution to the fluoresceins. 



Rhodanic (ro-dan'-ih) \p66ov, rose]. Denoting an acid 

 which produces a red salt with persalts of iron. R. 

 Acid. See Acid. 



Rhodelseon, Rhodelaeum (ro-del-e'-on, ro-del-^-um) 

 [poAov, a rose ; e?.aiov, oil]. The oil of rose. 



Rhodeorrhetin (ro-de-or-re'-tin). Synonym of Con- 

 volvulin. 



Rhodic Acid (to* -die) [pbdiog, rosy], RhO,. A flaky 

 powder ; the precipitate of a solution of rhodium ses- 

 quioxid by nitric acid. 



Rhodinacne (ro - din - ok*- ne) \p66ov, a rose ; okvtj, 

 acne] . Synonym of Acne rosacea. 



Rhodinon [ro' -din-on) \pb6ivov\. Oil of roses. 



Rhodiochlorid (ro-de-o-klo'-rid) [podwc, rosy ; ;r;/<apoc, 

 green]. A double chlorid of rhodium and one of the 

 alkali metals. 



Rhodionitrite (ro-de-o-ni'-trit) [pbbioc, rosy ; nitrum, 

 niter]. A combination of rhodium nitrite with the 

 nitrite of some other element or radicle. 



Rhodis (ro'-dis) [pbdioq, rosy]. An ointment or pow- 

 der made from roses. 



Rhodium (ro'-de-um) \j>66ioc, rosy]. A rare metal 

 (symbol, Rh. ; at. wt. , 103) of the platinum group. 

 Its medicinal qualities are little known. See Ele- 

 ments, Table of. R., Oil of: (1) a fragrant oil de- 

 rived from the root-wood of Cotrvohntlus scoparius and 

 C.Jloridus of the Canaries ; (2) a factitious compound 

 which commercially replaces the preceding for the most 

 part ; (3) an oil from Amyris balsamifera, a West 

 Indian tree. The foregoing oils are mainly used by 

 veterinarians. 



Rhodizite (ro'-diz-it) [pod! r ecv,be like a rose]. A rare 

 borate of aluminum and potassium ; it occurs in mi- 

 nute isomeric crystals. 



Rhodochrosite (ro-do-kro / -sit) \p66ov, rose ; ^pJJOTC, a 

 coloring]. Native protocarbonate of manganese, a 

 delicate, rose-red color, occurring in rhombohedral 

 crystals. 



Rhododendron [ro - do - den' - dron) [boibievSpov , the 

 oleander]. A large genus of shrubs of the order 

 ericaceae and species rhodorece. R. campanulatum, 

 the bell-flowered rhododendron. The leaves are used 

 as an errhine. R. chrysanthum, a variety of 

 Eastern Siberia. The leaves and flowering branches 

 are used in rheumatism and gout. Thev are stimulant, 

 diaphoretic, and diuretic, and in large doses narcotic. 

 R. cinnabarinum, an East Indian variety — poisonous. 

 R. dahuricum, Dahurian rhododendron. The leaves 

 are used in gout and rheumatism. R. maximum, 

 American great laurel. The leaves are sometimes 

 used in rheumatism and gout. R. officinale. 

 Synonym of R. chrysanthum. R. ponticum, pontic 

 rhododendron of Asia Minor, Armenia, and Spain. It 

 is used in gout and rheumatism. R., Tinctura, made 

 by treating 1 part of the leaves of R. chrysanthum 

 with 3 parts each of brandy and white wine for two 

 weeks, and filtering. 



Rhodomel (re/ -do-met) [pbSov, rose ; pQi, honey]. 

 Synonym of Afelrosce. R. cydoniatum, a mixture 

 consisting of 7 parts of honey, 30 parts of honey of 

 roses, and 180 parts of quince-seed mucilage. 





