rhizopodous (rizopodus)

[ IMG:content-2214.jpg:[graphic] Rhizostomatidæ (rī"zō-sto-mat'i-dē), n. pl . [ NL ., Rhizostoma ( -stomat- ) + -idæ .] A fam- ily of acalephs; the root-mouthed jellyfishes: the emended form of Rhizostomidæ . rhizostomatous (rī-zō-stom'a-tus), a. [ Rhizostomata , or hav- ing their characters. rhizostome (rī'zō-stōm), n. A member of the Rhizostomata . rhizostomean (ri-zō-stō'mē-an), a . [ rhizo- stome + -an .] Same as rhizostomatous . Rhizostomidæ (rī-zō-stom'i-dē), n. pl . [NL., Rhizostoma + -idæ.] A family of monoga- melian rhizostomatous discomedusans, repre- sented by the genus Rhizostoma . They are huge jellyfishes, which may attain a diameter of 3 feet, po e powerful stinging-organs proportionate to their size, and are found chiefly in tropical seas. See cut under acaleph . rhizostomous (rī-zos'tō-mus), a . Same as rhi- rhodeoretinic (rō-de-or-e-tin'ik), a . [ rhodes-wood (rodz'wud), n. The wood of the West Indian tree Amyris balsam if era : so called from its resemblance to rhodium-wood, and used for a similar purpose. See rhodium - wood . Also called candlewood . Rhode us (rō'dē-us), n. [NL. (Aga iz, 1836), ῥόδεος , of roses, ῥόδον , rose: see rosel.] The typical genus of Rhode in a . R. amarus (the bitterling in German) is the typical species. Rhodian (ro'di-an), a . and n . [F. Rhodien , L. Rhodius , Rhodian, Rhodus , Rhodos , Pódos , the isle of Rhodes.] I. a. Pertaining to Rhodes, an island of the Mediterranean, south- west of Asia Minor.- Rhodian laws, the earliest system of marine law known to history, said to have been compiled by the Rhodians after they had by their com- sea.-Rhodian pottery. See pottery , and cut under am- phora.- Rhodian school of sculpture, an important school of Hellenistic sculpture, of which the celebrated group known as the Laocoon is the capital work. The ar- and stem of two shrubs, Convolvulus scoparius and C. florid us , found in the Canaries. been an article of commerce, and from it was distilled an e ential oil in liniments, etc., but now replaced by artificial compounds. The name is applied also, at least in the form rhodes - wood , to the similar wood of Amyris balsam if era of the West Indies, etc., also called candlewood . rhodizite (rō'di-zīt), n. [So called because it colors the blowpipe-flame red; ῥοδίζειν , be like a rose ( ῥόδον , rose), + -ite2 .] A rare bo- rate of aluminium and pota ium, occurring in minute isometric crystals resembling boracite in form. It is known only from the vicinity of Ekaterinburg in the Urals. rho do chrome (rōdō-krōm), n. [ χρῶσις , a coloring, + -ite2 .] Native manganese pro to carbonate, a mineral occur- ring in rhombohedral crystals, or ma ive with rhombohedral cleavage, usually of a delicate rose-red color. It is isomorphous with the other rhom- bohedral carbonates, calcite or calcium carbonate, siderite or iron carbonate, etc. Also called dialogite . Rhodocrinidæ (rō-dō-krin'i-dē), n. pl . IMG:content-2215.png:[graphic] tists of this school sought their inspiration in the works of Lysippus. The intensity of expre ion attained in the Laocoon has never been surpa ed, and its exaggerations are redeemed by its real power. The group, however, falls far short of the supreme excellence attributed to it by Pliny and by the art amateurs of the end of the eighteenth century. The Rhodian school is intimately connected with that of Pergamum. II. n. A native or an inhabitant of Rhodes. rhoding (ro'ding), n. Naut ., either of the bra boxes for the brake of a ship's pump. rhodiochlorid, rhodiochloride (ro"di-ō-klō'- rid, -rid or-rīd), n. [ rhodium + chlorid , chlo- ride .] In chem ., a double chlorid of rhodium and the alkali metals. Rhodiola (ro-dī'ō-la), n . [NL. (Linnæus, 1737), ῥόδον , rose, + dim. -i- ola .] A former ge- nus of alpine plants belonging to the natural order Cra ulaceæ , now made a section of Se- dum (which see). Rhodites (rō-dītēz), n. [NL. (Hartig, 1840), ῥοδίτης , pertaining to a rose (applied to wine flavored with roses), ῥοδον , rose: see rosel.] A notable genus of gall-flies of the hymenopte- rous family Cynipidæ , having the hypopygium shaped like a plowshare, the marginal cell of the fore wings completely closed, and the claws of the hind tarsi entire. All of the species make galls on the rose. R. rosæ produces the mo y rose-gall, or bedegar. (See bedegar .) R.radicum produces root-galls. Seven species are known in North America, and five in Europe. rhodium (rō'di-um), n. [NL., ῥόδιος , made of roses, rose-like, ῥόδον , a rose: see rose .] Chemical symbol, Rh; atomic weight, 103 (Jör- gensen). A metal discovered in the beginning of the nineteenth century by Wollaston, as so- ciated with palladium in the ore of platinum. Rhodium fuses in the flame of the oxyhydrogen blowpipe, but with greater difficulty than platinum. When fused it is grayish-white, resembling aluminium in luster and color, and has a specific gravity of 12.1. When pure it is almost insoluble in acids, but if in the state of an alloy it is di olved by aqua regia. Of all the metals of the plat- inum group rhodium is the one most easily attacked by chlorin. Oil of rhodium. See oil . rhodium-gold (ro'di-um-gold), n. variety of native gold, said to contain a con- sider able amount of rhodium. rhodium-wood (ro'di-um-wud), n. [NL. lig- num rhodium , rosewood: see rhodium and rose- wood.] A sweet-scented wood from the root Rhododendron 2. [l. c.] Any one of the many species of the above genus, belonging to the section Rhododen dron; the rose-bay. The rhododendrons are handsome shrubs, much cultivated for their evergreen leathery leaves and profusion of beautifully formed and colored Howers. The ordinary species of American outdoor plant tations is R. Catawbiense, the Catawba or Carolina rhododendron, hybridized with the more tender exotics R. Pon ticum and R. arboreum. The Catawba species grows from 3 to 6, rarely 20, feet high, has oval oblong leaves and broadly bell-shaped lilac-purple or (in culture) variously colored flowers. It is native in the Alleghanies from Virginia southward. It has also been largely cultivated in Europe, and there are hundreds of varieties. The great rhododendron (or laurel), R. maximum, abounds in the Al Flowering Branch of the Great Laurel ( Rhododendron maximum). leghanies, and is found as far north as Maine and Canada. It is commonly taller than R. Catawbiense, with narrower leaves, and flowers pink or nearly white with a greenish throat. It is a fine species, but much le cultivated than that it for much californian rho do dendron, R. Californicum, resembles the Catawba rhododendron, but has more showy flowers. It deserves cultivation, and has proved hardy in England. The Pontic rhododendron, R. Ponticum, is the most common species of European gardens, hardy only as a low shrub in the northern United States. R. arboreum, the tree rhododendron, is a fine Him a lay an species, 25 feet high, with the leaves silvery-white beneath, and the flowers scarlet varying to white. The Lapland rhododendron, R. Lapponicum, is a dwarf arctic and alpine species of both hemispheres, grow. ing prostrate in broad tufts. The Siberian or Dahurian rhododendron, R. Dauricum, a dwarf species, somewhat cultivated, bears its bright rose-purple flowers on naked shoots in early spring. - Indian rhododendron. See Melas tom a. Rhodomela (rō-dom'e-la), n. [NL. (Agardh, 1824), spores tripartite, the cystocarps se ile for pedicellate, the spores pyriform. The genus is small, mostly confined to high latitudes in both hemispheres. There are two species or forms on the New England coast. Rho do me laceæ (rōdō-mē-lā sē-ē), n. pl. (Harvey, 1849), as Rhodomeleæ. Rhodomeleæ (rō-dō-mēlē-ē), n . pl . [NL. [NL. (Agardh, 1841),