RHODOMYCES 



1270 



RHUS 





Rhodomyces (ro-do-mi 1 '-sez) \_'p66ov, rose ; fivnqc, a 

 fungus]. A fungus resembling the Oldium albicans. 

 R. kochii, a fungus appearing as a delicate pink 

 mold and producing enormous numbers of conidia. 

 It is sometimes found in the gastric juice in pyrosis. 



Rhodon (ro'-don) \_p66ov~\. i. The rose. 2. The vulva. 



Rhodonite {ro 1 '-do-rill) [pddov, rose]. Native silicate 

 of manganese. It occurs in masses, and is occasionally 

 found in distinct crystals of a fine rose-red or pinkish 

 hue. 



Rhodophan (ro' -do-fan) [pddov, rose ; <j>avr/c, appear- 

 ing]. In biology, a red lipochrome pigment found by 

 Kiihne and others in the retinal cones, of fishes, rep- 

 tiles, and birds. Cf. Pigments, Conspectus of. 



Rhodophyl, Rhodophyll (ro'-do-fil) [pofieoc, red; <pvX- 

 Xov, a leaf]. A name given by Schiitt to the com- 

 pound pigment of the Red Alga. Cf. Pigments, 

 Conspectus of. 



Rhodophyllous (ro-do-fil' -us) [poSeoc, red ; <pv7~Aov, a 

 leaf]. In biology, containing rhodophyl. 



Rhodopsin (ro-dop' -sin) [podov, rose; wi/>, eye]. Visual 

 purple, a retinal substance the color of which is pre- 

 served by darkness, but bleached by daylight ; it is 

 found in the outer segment of the rods. 



Rhodorrhiza (ro-dor-i'-zah) \p66ov, a rose ; pi^a, a 

 root]. Synonym of Convolvulus. 



Rhodosaccharum (ro - do - sak'- ar - um) [podov, rose ; 

 aa.Kxo.pov, sugar]. Synonym of Syrupus rosarum. 



Rhodospermin (ro-do-sper'-min) [podov, rose ; (nrepfia, 

 seed]. Crystalloids of an albuminous substance found 

 in the Floridea?, forming the rhodophyl, or red coloring- 

 matter. Cf. Pigments, Conspectus of. 



Rhodotannic Acid (ro-do-tan' -ih) [pdfiov, rose ; tan- 

 nin, tannin], C u H 6 7 . A tannin derived from the 

 leaves of Rhododendron fumigineum. 



Rhodymenia palmata (ro-di-me' -ne-ah) [pochv, rose ; 

 vfiifv, a membrane]. A marine Alga (Scotch, Dulse ; 

 Irish, Dillesk), parasitic on littoral Fuci, Laminarim, 

 etc. It contains a mucilage which is used in scrofula. 

 Its value is probably dependent upon contained iodin. 

 It is largely used as food in the west of Ireland, also 

 in the Mediterranean regions, where it forms a com- 

 mon ingredient of soups. 



Rhcea (re' -ah) [pom]. Synonym of Leukorrhea. 



Rhceadic Acid (re-ad' -ik) [potac, a kind of poppy]. 

 See Papaveric Acid. 



Rhceadin (re' -ad -in) [poiac, a kind of poppy], 

 C 21 H 21 NO B . A crystallizable alkaloid obtained from 

 Papaver rhosas. 



Rhceagenin (re-aj'-en-in) [poiag, a kind of poppy], 

 C 21 H 2] NO fi . A base isomeric with rhceadin found 

 in acidified solutions of rhceadin. 



Rhcebdesis (reb-de'-sis) \_poij36riair']. Absorption ; re- 

 sorption. 



Rhcezus (re'-zus) [p^I^oc]. A purring auscultatory 

 sound. 



Rhogmos (rog'-mos) [pu^fidg - ]. See Snoring. 



Rhombo-atloideus (rom-bo-at-lo-id' -e-us) \^p6jifioq, a 

 rhomb ; drZ«c, the atlas ]. An anomalous muscle 

 arising from the spinal processes of the lower cervical 

 and upper dorsal vertebrae and having its insertion in 

 the transverse process of the atlas. 



Rhombocele, Rhombocoele (rom'- bo-sel) [p6fj(Sog, 

 rhomb; koI/.t/, cavity]. Same as Rhombocatia. 



Rhomboccelia (rom - bo - se'- le - a//) [p6/i t 3or, rhomb ; 

 K0i?Ja, hollow]. The sinus rhomboidalis ; a dilata- 

 tion of the cavity of the spinal cord in the sacral 

 region of birds. 



Rhombogen (rom' -bo-jen) [pd/iftoc, rhomb ; yzvijc, pro- 

 ducing]. In biology, one of the early embryonic 

 stages of a nematode worm ; to be distinguished from 

 the nematogen. 



Rhombohedral (rom - bo - he'- dral ) [pdfifioc, rhoml 

 eSpa, base]. Of the shape of a rhombohedron. R 

 Carbonates, the isomorphous group of the native 

 carbonates of calcium, magnesium, iron, manganese 

 zinc, and the intermediate compounds, as the double 

 carbonate of calcium and magnesium, etc. 



Rhomboid, Rhomboidal (rom'- bold, rom- bo/'- dal ' 

 [pdfifiog, a rhomb; eidoc, resemblance]. Having 1 

 shape similar to that of a rhomb. A quadrilatera 

 with opposite sides equal and parallel, and obliqm 

 angles. R. Fossa, the fourth ventricle of the brain 

 R. Impression. See Impression. R. Ligament 

 See Ligament. R. Sinus. See Rhomboccelia. 



Rhomboideus (rom-bo-id'-e-us). See Muscles, Table op 



Rhoncal (rong'-kal) [poyxoc, a snoring]. Relating 

 toarhonchus. R. Fremitus. See Fremitus. 



Rhonchial (rong'-ke-al). Same as Rhoncal. 



Rhoncus (rong'-kus) [poyxog, snore]. A rattling o, 

 musical sound produced in the throat or broi 

 tubes during respiration. Rhonchi may be son 

 or sibilant, the former being loud, low-pitchei 

 snoring, and the latter high-pitched and whis 

 Rhonchi are especially marked during the early stage 

 of acute bronchitis, when the mucous membra 

 swollen and thickened, but has not begun to si 

 mucus ; also in the spasm of the bronchial tube^ i 

 asthma and in the chronic bronchitis of emphysema. 



Rhoodes (roo'-dlz) [powoW, like a stream]. Of fever 

 associated with fluid discharges. 



Rhopal Nich (ro' -pal-nitch ). See Antra rhopa 



Rhopalismus (ro-pal-iz'-mus) [poira'Aov, club]. Prii 

 pism ; also plica polonica. 



Rhopalium (ro-p&l' -e-um) [porraAov, a club ; //., Rh 

 palia~\. In biology, the so-called sense-club 

 acraspede Medusa ; a compound sense-organ of whu 

 the auditory organ is the principal factor; it ^ 

 same time a metamorphosed tentacle into which 

 hollow process of the gastric system penetrates. 



Rhopalocephalus carcinomatosus (ro-pal-o- 

 tts kar-sin-o-mat'o-sus). A name given to a pai 

 organism found by Korotneff in the cells of carciii' 

 The formation of pearls is attributed to it. See Pai 

 sites (Animal), Table of. 



Rhopalosis (ro-pal-o' -sis) [poTra/.ov, club]. Plii 

 lonica. 



Rhophesis (ro-fe'-sis) [pocpe'iv, to gulp down]. Si 

 ping ; absorption. 



Rhophetic (ro-fet'-ik) [po^^n/ede]. An absorbe 

 medicine. 



Rhosaton (ro'-zat-on) [pdaarov']. A purgative 

 tion of roses. Cf. Actius. 



Rhotacism (ro'- las - izm) [poraniZeiv, to use the 

 sound]. I. The substitution of some other S] 

 sound for that of the letter r ; more correctly, th 

 frequent or too strong utterance of the ;- sound 

 use of the r sound in place of some other s] 

 sound. 



Rhothones (rotho'-nez) [puftuver']. The nasal 

 ties. 



Rhubarb (ru'-barb) [prjov~\. See Rheum. 



Rhubarbaric Acid, Rhubarbarin (ru-bar'-bar-ik, >, 

 bai' -bar-in). Synonym of Acid, Chrysophanic. 



Rhus (rus) [povq, sumac]. In biology, a genus ol I 

 order Anacardiacctr, of which the sumachs an 

 known. R. aromatica, Sweet Sumach; the barVi 

 the root is an astringent, acting upon tin- ui 

 canal. It is useful in cystitis, incontinence ol w" 

 and diabetes. Dose of the fid. ext. rrLxv-w 

 R. coriaria, Elm-leaved Sumach, the dried let' 

 and fruit are used in dyeing and tanning and conl 

 gallo-tannic acid. The berries are used 

 diment and contain binoxalate of calcium. H 



