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orcin
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orcin
orcin Chem. (ˈɔːsɪn) Also -ine. [mod. f. mod.L. orc-ina, It. orc-ello, orchil: see -in.] A former name for orcinol. Cf. orcein.1840 Penny Cycl. XVI. 480/2 Orcin, a peculiar matter obtained by Robiquet from a species of lichen (variolaria orcina). Ibid., These crystals are orcin, which become, as alr...
Oxford English Dictionary
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Aleksandar Zega
defended his doctoral dissertation, entitled Über die Einwirkung des para-Toluidins auf Resorcin und Hydrochinon - über die Einwirkungdes Anilins auf Orcin doctoral thesis which consisted of two partsː Über die Einwirkung des p-Toluidins auf Resorcin and Hydrochinon and Über die Einwirkung des Anilins auf Orcin
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orcinol
orcinol (ˈɔːsɪnɒl) [f. orcin + -ol 2.] A colourless crystalline substance (C7H8O2 + H2O) obtained from the various kinds of orchilla-weed, turning red, brown, or yellow, in contact with air or when treated with various compounds, which gives a purple colour with ribose and is used in estimating nucl...
Oxford English Dictionary
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orcein
orcein Chem. (ˈɔːsiːɪn) [Altered from orcin.] A red colouring-matter (C7H7NO3) obtained from orcin by the action of ammonia and oxygen, and existing in the dye called orchil.1838 T. Thomson Chem. Org. Bodies 404 To the substance into which orcin is converted by the joint action of oxygen, ammonia, a...
Oxford English Dictionary
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Pierre Jean Robiquet
mass industrial production by Carl Gräbe and Carl Theodore Liebermann in Germany, and by William Henry Perkin in Great Britain) and purpurin (1826), Orcin
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resorcin
resorcin Chem. (rɪˈzɔːsɪn) Also -ine. [f. resin) + orcin.] 1. = resorcinol.1868 Watts Dict. Chem. V. 82 Resorcin, C6H6O2, a compound homologous with orcin..produced by the action of potash on galbanum. 1880 Jrnl. Soc. Arts Apr. 446/2 The same body will act on resorcine to produce a colour only diffe...
Oxford English Dictionary
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Ethnolichenology
Both Roccella spp. and Ochrolechia spp. contain the lichen substance orcin, which converts into the purple dye orcein in the ammonia fermentation process
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alorcinic
alorcinic, a. Chem. (ˌælɔːˈsɪnɪk) [f. aloe) + orcin + -ic.] In alorcinic acid, C9H10O3, produced by the action of melting potash upon aloes.1875 Watts Dict. Chem. 2nd Supp. VII. 53 Alorcinic acid is resolved by fusion with potash into acetic acid and orcin.
Oxford English Dictionary
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List of biomolecules
Nicotinamide adenine dinucleotide (NAD)
Norepinephrine
Nucleic Acid
Nucleosome
Nucleoside
Nucleotide
O
Ochratoxin A
Oestrogens
Oligopeptide
Oligomycin
Orcin
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orsellic
orˈsellic, a. Chem. [f. med.L. Orsella orchil + -ic.] In orsellic acid, a crystalline solid, C16H14O7 + 2H2O, obtained from South African and South American lichens.1857 Miller Elem. Chem. III. 542 note, Lecanoric acid, according to Gerhardt, is identical with the alpha and beta orsellic acids of St...
Oxford English Dictionary
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lecanoric
lecanoric, a. Chem. (lɛkəˈnɒrɪk) [f. Lecanora, the name of a genus of lichens.] lecanoric acid: a crystalline substance obtained by Schunck from certain members of the genus Lecanora of lichens. Hence lecanorate (-ˈɔərət), a salt of lecanoric acid; lecanorin (-ˈɔərɪn) = lecanoric acid.1844 Fownes Ch...
Oxford English Dictionary
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List of portmanteaus
quasar
purine, from pure and urine
quoats, from quality and oats
radome, from radar and dome
redox, from reduction and oxidation
resorcin, from resin and orcin
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saccharoid
saccharoid, a. and n. (ˈsækərɔɪd) [f. Gr. σάκχαρ-ον sugar + -oid.] A. adj. Geol. Having a granular texture resembling that of loaf-sugar.1833 Lyell Princ. Geol. III. 11 Saccharoid gypsum. Ibid. 79 Saccharoid, Saccharine. When a stone has a texture resembling that of loaf-sugar. 1833–4 J. Phillips in...
Oxford English Dictionary
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beta
beta (ˈbiːtə) [a. L. beta, Gr. βῆτα.] 1. The second letter of the Greek alphabet, β, β.a 1300 Cursor M. 12425 Bot sai þou me first o betha, And siþen i sal þe sai alpha. 2. In various scientific uses; esp. a. Astron. Used to mark the second star in a constellation. b. Chem. The second of two or more...
Oxford English Dictionary
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