piceinn.

Brit.

/ˈpʌɪsɪɪn/,

/ˈpɪsɪɪn/, U.S.

/ˈpaɪˌsin/,

/paɪˈsin/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin piceus , -in suffix¹.

Etymology: < classical Latin piceus pitchy (see piceous adj.) + -in suffix¹; in sense 1 after French picéine (C. Tanret 1894, in Comptes rendus hebd. de l'Acad. des Sci. 119 80).

1. Chemistry. A glucoside present in various trees, esp. willows and conifers; p-hydroxyacetophenone-β-glucoside, CH₃·CO·C₆H₄·O·C₆H₁₁O₅.

ΘΚΠ

the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > glycosides > named > others

jalapin1832

rhaponticin1834

struthiin1835

menyanthin1842

quercitric acid1844

rhodeoretin1845

helicin1848

rutic acid1848

morindin1849

panaquilon1858

galactoside1862

parillic acid1864

thujin1868

digitoxin1875

margarin1878

naringin1879

teucrin1881

condurangin1885

scopolin1885

linamarin1892

arabinoside1893

picein1894

rhamnoside1894

mannoside1897

saponaretin1905

pentoside1910

prunitrin1910

prunasin1912

leucoanthocyanin1920

pyranoside1930

stevioside1931

furanoside1932

hecogenin1943

1894 Jrnl. Chem. Soc. 66 i. 616 Picein, C₁₄H₁₈O₇, whether anhydrous or hydrated, crystallises in silky, prismatic needles, with a bitter taste.

1934 C. C. Steele Introd. Plant Biochem. xi. 118 Picein, C₁₄H₁₈O₇, salinigrin, or salicinerin, occurs in several species of Salix and Populus.

1968 Jrnl. Chromatogr. 36 28 The collected fraction of pure trimethylsilyl picein also gave a satisfactory infrared spectrum.

2000 Proc. National Acad. Sci. U.S.A. 97 13185/1 Cinnamic acid derivatives were quantified as chlorogenic acid, picein derivatives as picein.

2. (Also with capital initial.) An inert thermoplastic substance composed of hydrocarbons from rubber, shellac, and bitumen, used for making joints airtight. Also picein wax.

ΘΚΠ

the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > thermoplastic resins > picein

picein1926

society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > plastic > capable of hardening after heating or (re)shaping > specific thermoplastic materials

Rhodoid1918

polyphenylene oxide1921

picein1926

Parafilm1934

nylon1938

polyethylene1939

polythene1939

Saran1940

alkathene1941

polyethylene terephthalate1946

Visqueen1948

Lexan1956

1926 Proc. Royal Soc. A. 111 118 The cathode and anode portions were connected by a lamp glass, these and other joints being made gas-tight with ‘Picein’.

1936 Discovery Sept. 286/1 A plug of picein wax in the capillary is thereby melted and seals up the tube.

1974 L. Holland et al. Vacuum Man. i. 65 Picein. This is a classical vacuum wax—sticks well to metal and glass, is resistant to dilute acid and alkalies, is thermoplastic and made from bituminous substances.

1998 Sphaera Spring 3/4 All the joints in the chamber had originally been sealed up with picein.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	picein
释义	piceinn. Brit. /ˈpʌɪsɪɪn/, /ˈpɪsɪɪn/, U.S. /ˈpaɪˌsin/, /paɪˈsin/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin piceus , -in suffix¹. Etymology: < classical Latin piceus pitchy (see piceous adj.) + -in suffix¹; in sense 1 after French picéine (C. Tanret 1894, in Comptes rendus hebd. de l'Acad. des Sci. 119 80). 1. Chemistry. A glucoside present in various trees, esp. willows and conifers; p-hydroxyacetophenone-β-glucoside, CH₃·CO·C₆H₄·O·C₆H₁₁O₅. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > glycosides > named > others jalapin1832 rhaponticin1834 struthiin1835 menyanthin1842 quercitric acid1844 rhodeoretin1845 helicin1848 rutic acid1848 morindin1849 panaquilon1858 galactoside1862 parillic acid1864 thujin1868 digitoxin1875 margarin1878 naringin1879 teucrin1881 condurangin1885 scopolin1885 linamarin1892 arabinoside1893 picein1894 rhamnoside1894 mannoside1897 saponaretin1905 pentoside1910 prunitrin1910 prunasin1912 leucoanthocyanin1920 pyranoside1930 stevioside1931 furanoside1932 hecogenin1943 1894 Jrnl. Chem. Soc. 66 i. 616 Picein, C₁₄H₁₈O₇, whether anhydrous or hydrated, crystallises in silky, prismatic needles, with a bitter taste. 1934 C. C. Steele Introd. Plant Biochem. xi. 118 Picein, C₁₄H₁₈O₇, salinigrin, or salicinerin, occurs in several species of Salix and Populus. 1968 Jrnl. Chromatogr. 36 28 The collected fraction of pure trimethylsilyl picein also gave a satisfactory infrared spectrum. 2000 Proc. National Acad. Sci. U.S.A. 97 13185/1 Cinnamic acid derivatives were quantified as chlorogenic acid, picein derivatives as picein. 2. (Also with capital initial.) An inert thermoplastic substance composed of hydrocarbons from rubber, shellac, and bitumen, used for making joints airtight. Also picein wax. ΘΚΠ the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > thermoplastic resins > picein picein1926 society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > plastic > capable of hardening after heating or (re)shaping > specific thermoplastic materials Rhodoid1918 polyphenylene oxide1921 picein1926 Parafilm1934 nylon1938 polyethylene1939 polythene1939 Saran1940 alkathene1941 polyethylene terephthalate1946 Visqueen1948 Lexan1956 1926 Proc. Royal Soc. A. 111 118 The cathode and anode portions were connected by a lamp glass, these and other joints being made gas-tight with ‘Picein’. 1936 Discovery Sept. 286/1 A plug of picein wax in the capillary is thereby melted and seals up the tube. 1974 L. Holland et al. Vacuum Man. i. 65 Picein. This is a classical vacuum wax—sticks well to metal and glass, is resistant to dilute acid and alkalies, is thermoplastic and made from bituminous substances. 1998 Sphaera Spring 3/4 All the joints in the chamber had originally been sealed up with picein. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1894
随便看	θ126218 θ126219 θ12622 θ126220 θ126221 θ126222 θ126223 θ126224 θ126225 θ126226 θ126227 θ126228 θ126229 θ12623 θ126230 θ126231 θ126232 θ126233 θ126234 θ126235 θ126236 θ126237 θ126238 θ126239 θ12624