英语词汇“porphyrine”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	porphyrine
释义	▪ I. porphyrine¹\|ˈpɔːfɪraɪn\| Also 6 porphurine, 9 porphyrin. [f. as porphyric a.¹ + -ine⁴.] †1. = porphyry. Obs. rare. 1588Greene Perimedes Wks. (Grosart) VII. 57 Houses stuffed within with plate and outwardly decked and adorned with such curious worke of porphurine, as nature in them seemeth to be ouerlaboured with arte. 2. Geol. A porphyritic rock: see quots. 1811Pinkerton Petralogy I. 88 The Swedish porphyry, already mentioned, approaches nearer to a porphyrin,..forming the passage from basaltin to porphyry.1862Dana Man. Geol. 79 Porphyrine. Opaque or nearly so... Consists of feldspar; sometimes quartzose. ▪ II. ˈporphyrine² Chem. [f. Gr. πόρϕυρ-ος purple + -ine⁵.] An amorphous alkaloid obtained from the bark of an Australian species of Alstonia (family Apocynaceæ), which exhibits a characteristic red colour with nitric acid. 1872Watts Dict. Chem. VI. 955 On evaporating the ether, the porphyrine remains in the form of a varnish soluble in water and in alcohol.1890Billings Med. Dict., Porphyrine, C₂₁H₂₅N₃O₂, an amorphous alkaloid.
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