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单词 rhodo-
释义

rhodo-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.
Origin: Of multiple origins. Partly a borrowing from Latin. Partly a borrowing from Greek. Etymons: Latin rhodo-; Greek ῥοδο-.
Etymology: < post-classical Latin and scientific Latin rhodo- and its etymon ancient Greek ῥοδο-, combining form (in e.g. ῥοδοδάκτυλος rosy-fingered) of ῥόδον rose, probably a borrowing < the Iranian word represented by Persian gul and Armenian vard ; compare -o- connective.This element is found early in borrowings from Latin, e.g. rhodomel n., rhododaphne n., rhododendron n. An isolated 17th-cent. formation within English is shown by rhodostaurotic adj. Compare German rhodo- (formations in which are found from the early 19th cent., in e.g. Rhodonit rhodonite n., Rhodochrosit rhodochrosite n.). From the early 19th cent. both borrowings and adaptations of German words and formations within English are found with some frequency.
Of, relating to, or resembling a rose; spec. (in the names of minerals, chemicals, organisms, etc.) rose-coloured, pink, red.
rhodochrome n.
Brit. /ˈrəʊdə(ʊ)krəʊm/
,
U.S. /ˈroʊdəˌkroʊm/
[after German Rhodochrom ( K. G. Fiedler Reise durch Griechenland (1841) II. 247)] Mineralogy (now historical) a red, chromium-containing mineral now regarded as identical with kämmererite; cf. rhodophyllite n.
ΚΠ
1848 Synopsis Contents Brit. Mus. (ed. 53) 94/3 Alphabetical list of the minerals in the North Gallery..Rhodochrome.
1854 R. D. Thomson Cycl. Chem. 440/2 Rhodochrome,..a variety of serpentine... It contains sesquioxide of chromium.
1958 Amer. Mineralogist 43 951 The analysis..was found to fall within the Cr2O3 range of the Texas rhodophyllite. Smith and Brush then proposed that since the two were identical, rhodochrome had precedence.
rhodolite n.
Brit. /ˈrəʊdəlʌɪt/
,
U.S. /ˈroʊdəˌlaɪt/
Mineralogy a pale rose or purple-coloured garnet intermediate in composition between pyrope and almandite.
ΘΚΠ
the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > garnet > others
allochroite1801
pyrope1804
cinnamon-stone1805
colophonite1808
succinite1816
topazolite1819
hessonite1820
greenlandite1823
polyadelphite1829
vermeil1884
rhodolite1898
hibschite1907
plazolite1920
kimzeyite1958
majorite1970
1898 W. E. Hidden & J. H. Pratt in Amer. Jrnl. Sci. 155 296 The analysis proves that this garnet is not almandine nor wholly pyrope and is distinctive enough in color alone to merit a varietal name. We, therefore, propose the name of Rhodolite, from the two Greek words ῥόδον, a rose, λίθος, a stone.
1931 Amer. Mineralogist 16 563 Excellent samples of rock which contain much gedrite are still to be found on the dump which, however, has been so carefully picked over for rhodolite that good samples are scarce.
1977 V. Gissing tr. Kouřimský's Illustr. Encycl. Minerals & Rocks 237 The light rose-red to faintly violet mixtures of pyrope and almandine are called rhodolites and they occur in California.
2004 Surface No. 48. 148 Belle d'Hiver ring with tourmaline, citrine, rhodolite, amethyst, peridot, iolite set in 18k yellow gold.
rhodophane n.
Brit. /ˈrəʊdəfeɪn/
,
U.S. /ˈroʊdəˌfeɪn/
[after German Rhodophan (W. Kühne 1878, in Untersuchungen physiol. Inst. Univ. Heidelberg 1 348)] Biochemistry (now rare) a red carotenoid pigment found in the retinas and other tissues of certain birds, fishes, and other animals.
ΘΚΠ
the world > life > biology > substance > pigment > [noun] > human or animal pigments > purple > rhodopsin
rhodophane1878
rhodopsin1878
visual purple1878
lumirhodopsin1950
metarhodopsin1950
prelumirhodopsin1963
1878 London Med. Rec. 6 364/2 Three of these colours they have named chlorophane, xanthrophane [sic], and rhodophane, corresponding to a yellowish green, an orange, and a fine red or purple.
1922 L. S. Palmer Carotinoids iv. 144 Krukenberg..lists 14 species of Picides (woodpeckers) whose red [feather] pigment is rhodophane.
1951 H. J. Deuel Lipids I. vi. 511 The term lipochrome was proposed by Krukenberg to cover a number of animal and plant pigments which had been known by such diverse names as luteins, carotin, zoonerythrin, tetronerythrin, chlorophane, xanthophane, and rhodophane.
rhodophyllite n.
Brit. /ˌrəʊdə(ʊ)ˈfɪlʌɪt/
,
U.S. /ˌroʊdəˈfɪˌlaɪt/
Mineralogy (now historical) a red, flaky, chromium-containing mineral now regarded as identical with kämmererite; cf. rhodochrome n.
ΚΠ
1854 Proc. Acad. Nat. Sci. Philadelphia 1852–3 6 118 July 13th... Dr. [F. A.] Genth read a paper describing a new mineral, Rhodophyllite.
1873 J. L. Smith Mineral. & Chem. 125 A short time after his results appeared an analysis of rhodochrome was published by Hermann; its identity with those of rhodophyllite induced us to re-examine the latter.
1958 Amer. Mineralogist 43 951 The analysis..was found to fall within the Cr2O3 range of the Texas rhodophyllite. Smith and Brush then proposed that since the two were identical, rhodochrome had precedence.
rhodoplast n.
Brit. /ˈrəʊdəplɑːst/
,
/ˈrəʊdəplast/
,
U.S. /ˈroʊdəˌplæst/
[after German Rhodoplast (A. F. W. Schimper 1885, in Jahrb. f. wissensch. Bot. 16 40)] Botany a chromoplast containing a red pigment, phycoerythrin, found in red algae.
ΘΚΠ
the world > plants > particular plants > algae > [noun] > red algae > part or cell of
nemathecium1830
ceramidium1849
tetraspore1857
trichophore1860
phycoerythrin1866
coccidium1867
kalidium1872
cystocarp1875
palmelline1879
tetragonidium1882
rhodoplast1886
nemathece1889
siphon1889
tetrasporangium1890
1886 Jrnl. Royal Microsc. Soc. 6 640 For the chromoplasts of the Phæophyceæ the author proposes the term phæoplasts; for those of the Florideæ rhodoplasts.
1932 R. E. Torrey Gen. Bot. x. 184 In the brown and red algæ the pigment is brown or red and the plastids are called respectively phæoplasts and rhodoplasts.
2007 R. R. Wise & J. K. Hoober Struct. & Function of Plastids i. 7/1 Absorption of blue light by the red pigments found in rhodoplasts allow [sic] some marine species of the Rhodophyta to grow at depths of 268 m.
rhodosperm n.
Brit. /ˈrəʊdə(ʊ)spəːm/
,
U.S. /ˈroʊdəˌspərm/
,
/ˈroʊdoʊˌspərm/
Botany (now rare) any alga of the former class Rhodospermeae (now called Rhodophyceae); a red alga.
ΘΚΠ
the world > plants > particular plants > algae > [noun] > red algae
red alga1834
rhodosperm1847
dough balls1876
lithothamnion1895
rhodophyte1932
1847 W. H. Harvey Nereis Australis 4 The Rhodosperms are remarkable for possessing what seems to be a double system of fructification, a thing without parallel in the Vegetable Kingdom.
1866 J. Lindley & T. Moore Treasury Bot. II. 978/1 The Rhodosperms form one of the three great divisions of Algæ.
1903 W. S. Furneaux Sea Shore xv. 358 We will now proceed to examine some of the best known..of the rhodosperms, beginning with the order Ceramiaceæ, which contains a number of red..weeds with jointed thread-like fronds.
rhodospermin n. (also rhodospermine) [after German Rhodospermin (C. Cramer 1862, in Vierteljahrsschrift der Naturforsch. Ges. in Zürich 7 350)] Biochemistry Obsolete a colouring matter found in red algae, consisting chiefly of phycoerythrin.
ΚΠ
1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 51 In dried specimens of other Florideæ..Klein observed colourless crystalloids of a different form. These formations may all be comprised in the name first given by Cramer,—Rhodospermine.
1891 G. Massee Evol. Plant Life iii. 125 The red colour is due to a complex pigment called rhodospermin, that can be extracted by immersing the plant in fresh water.
rhodospermous adj. Botany Obsolete (a) belonging to the former class Rhodospermeae of algae (see rhodosperm n.); (b) having red seeds or spores (rare).Sense (b) is apparently only attested in dictionaries or glossaries.
ΘΚΠ
the world > plants > particular plants > algae > seaweed > [adjective] > of or belonging to type of seaweed
monosiphonous1853
rhodospermous1856
tetrasporic1857
tetrasporous1874
fucaceous1891
monosiphonic1899
laminaria1935
lithothamnion1935
lithothamnic1967
1856 W. L. Lindsay Pop. Hist. Brit. Lichens 2 The rhodospermous seaweed.
1859 R. G. Mayne Expos. Lexicon Med. Sci. (1860) 1095/1 Rhodospermus, having seeds or sporidia of a rose-colour, as the Actinocladium; rhodospermous.
1881–2 W. Saville-Kent Man. Infusoria II. 816 Podophyra conipes... Hab.—Salt water: White sea (Mereschkowsky), on Rhodospermous Algæ (Ptilota and Ceramium), at various depths.
rhodotannic adj.
Brit. /ˌrəʊdə(ʊ)ˈtanɪk/
,
U.S. /ˌroʊdoʊˈtænɪk/
[after German Rhodotannsäure rhodotannic acid (R. Schwartz 1852, in Sitzungsber. der Kaiserlichen Akad. der Wissensch. Wien: Math.-Nat. Classe 9 299)] Chemistry (now rare) rhodotannic acid a tannin found in the leaves of the alpenrose, Rhododendron ferrugineum.
ΘΚΠ
the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] > from leaves
rhodotannic acid1853
gymnemic acid1887
1853 Chem. Gaz. 11 44 Rhodotannic acid in the anhydrous state has..the composition represented by the formula C14H6O7.
1918 A. G. Perkin & A. E. Everest Nat. Org. Colouring Matters xiii. 449 Rhodotannic acid, 4C14H12O7, 3H2O,..is an amber-coloured substance which gives a green coloration with ferric chloride solution.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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comb. form1847
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