form-comb. form¹

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

In Chemistry, combining form of formic adj. or formyl n., as in (Cf. the termination of chloro-form.)

formal n.²

Brit.

/ˈfɔːmal/

U.S.

/ˈfɔrˌmæl/

any of the acetals derived from formaldehyde, having the general formula CH₂(OR)₂; spec. methylal n., CH₂(OCH₃)₂.

ΘΚΠ

the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > aldehyde derivatives

acetal1838

hydramide1865

phenylhydrazone1888

hemi-acetal1893

formal1900

1900 W. A. N. Dorland Amer. Illustr. Med. Dict. 264/1 Formal, methylol or methylene dimethylate..: a clear, fragrant liquid. It is anesthetic and hypnotic.

1952 E. H. Rodd Chem. Carbon Compounds I. xvi. 1031 A mixture of the isomeric formals is obtained from glycerol, trioxymethylene and conc. HCl at 100°.

form-albumin n.

Brit.

/fɔːmˈalbjᵿmᵻn/

U.S.

/ˌfɔrmælˈbjumən/

(see quot. 1901).

ΚΠ

1901 W. A. N. Dorland Illustr. Med. Dict. Form-albumin, a formaldehyd and casein compound; a yellowish powder, used as a wound-antiseptic.

ˈformamide n.

Brit.

/ˈfɔːməmʌɪd/

U.S.

/ˈfɔrməˌmaɪd/

the amide of formic acid.

ΘΚΠ

the world > matter > chemistry > organic chemistry > amides > [noun] > others

tartaric amide1789

cyanamide1838

sodamide1838

furfuramide1845

opiammone1845

formamide1852

param1866

tartranil1868

terephthalamide1868

sulphonamide1881

acrylamide1893

caprolactam1944

lysergic acid1952

thioTEPA1953

lipoamide1960

1852Formamide [see formanilide n.].

1863 A. W. Hofmann in Jrnl. Chem. Soc. 16 72 Half-way between formate of ammonium and hydrocyanic acid, theory justifies us in searching for formamide.

1863 Jrnl. Chem. Soc. 16 74 In a partial vacuum, which reduces the boiling point to 140°, formamide may be distilled without the slightest decomposition.

1866 H. E. Roscoe Lessons Elem. Chem. xxxii. 285 Formamide... Obtained by acting on ethyl formate with ammonia.

1890 Lancet 11 Oct. 783/2 Injections..of a 1 per cent. solution of formamide of mercury.

forˈmamidine n.

Brit.

/fɔːˈmamᵻdiːn/

/fəˈmamᵻdiːn/

U.S.

/fɔrˈmæməˌdin/

/fərˈmæməˌdin/

the postulated compound NH₂·CH:NH, which is known only as its salts.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic salts > [noun] > miscellaneous others

alum zucarinea1425

white precipitate1588

volatile salt or salts1639

malate1788

oxalate1788

sebate1788

succinate1789

camphorate1800

suberate1800

tannate1802

formate1807

zymate1817

uranate1819

ambreate1820

fungate1821

hydriodide1823

sorbate1823

fulminate1824

uraniate1824

pinate1829

oleate1831

pectate1831

resinate1831

xanthate1831

formobenzoate1834

racemate1835

indigotate1838

japonate1838

oxalhydrate1838

oxalovinate1838

palmate1838

pyruvate1838

roccellate1838

rubinate1838

verdite1838

oxalurate1839

sesquisalt1839

palmitate1840

rhabarbarate1840

hippurate1841

palmitin1841

sericate1841

stearate1841

oenanthylate1843

humate1844

parabanate1844

urethylane1844

angelate1846

fungiate1847

nitroprusside1849

sodium nitroprusside1849

fulminurate1855

igasurate1855

inosinate1855

phenate1857

sinapate1857

styphnate1857

anchoate1858

parellate1858

toluate1860

piperate1862

fumarate1864

glycollate1864

hydurilate1865

hyoglycocholate1865

isamates1865

itaconates1865–72

paralactate1866

porphyrate1866

usnate1866

thebolactate1867

oxalonitrate1868

rhodanate1868

stearerate1868

terebate1868

terephthalate1868

thymotate1868

turpetholate1868

violurate1868

viridate1868

xanthide1868

glycocholate1872

xylate1872

xylidate1872

tiglate1875

peptonate1876

hydracrylate1877

thymolate1880

formamidine1882

carboxylate1884

nucleate1896

phytin1905

cacodylate1908

cupferron1910

protamine sulphate1915

metallic soap1918

pentaerythritol tetranitrate1923

phosphagen1927

phosphocreatine1927

viologen1933

pentachlorophenate1938

hyaluronate1946

tetraethylpyrophosphate1947

pteroylglutamate1948

inosate-

1882 Jrnl. Chem. Soc. 41 266 The solid therefore obtained by the action of the substance, 2HCN + 3HCl, upon alcohol is the hydrochloride of the base.. formamidine.

1952 Jrnl. Appl. Chem. 2 203 It is now possible to report a simple method for the synthesis of formamidine hydrochloride.

forˈmanilide n.

Brit.

/fɔːˈmanᵻlʌɪd/

/fɔːˈmanl̩ʌɪd/

/fəˈmanᵻlʌɪd/

/fəˈmanl̩ʌɪd/

U.S.

/fɔrˈmænəˌlaɪd/

/fərˈmænəˌlaɪd/

a white crystalline compound, C₆H₅·NH·COH, used as an antipyretic, analgesic, and local anaesthetic.

ΘΚΠ

the world > matter > chemistry > organic chemistry > alkalamides > [noun] > anilides > named

formanilide1852

tartranilide1868

1852 W. Gregory Handbk. Org. Chem. (ed. 3) 337 Formanilide, the analogous compound to which, formamide, is not known.

1966 I. T. Millar & H. D. Springall Sidgwick's Org. Chem. Nitrogen (ed. 3) vii. 224 The formylation of aromatic amines proceeds very readily; formanilide, H·CONHPh, is rapidly formed on boiling dilute formic acid with aniline.

formeston n.

Brit.

/ˈfɔːmᵻst(ə)n/

U.S.

/ˈfɔrməst(ə)n/

ΚΠ

1908 Practitioner Feb. 280 Combination [of pure eston] with formic acid produced a more energetic substance. This has been called ‘Formeston’, the acetic acid of one of the valencies of the alumina hydrate being replaced by formic acid.

1925 T. L. Stedman Pract. Med. Dict. Formeston, aluminum acetoformate, a dusting powder similar to eston and subeston.

This entry has not yet been fully updated (first published 1897; most recently modified version published online June 2018).

单词	form-
释义	form-comb. form¹ Stress is usually determined by a subsequent element and vowels may be reduced accordingly. In Chemistry, combining form of formic adj. or formyl n., as in (Cf. the termination of chloro-form.) formal n.² Brit. /ˈfɔːmal/ , U.S. /ˈfɔrˌmæl/ any of the acetals derived from formaldehyde, having the general formula CH₂(OR)₂; spec. methylal n., CH₂(OCH₃)₂. ΘΚΠ the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > aldehyde derivatives acetal1838 hydramide1865 phenylhydrazone1888 hemi-acetal1893 formal1900 1900 W. A. N. Dorland Amer. Illustr. Med. Dict. 264/1 Formal, methylol or methylene dimethylate..: a clear, fragrant liquid. It is anesthetic and hypnotic. 1952 E. H. Rodd Chem. Carbon Compounds I. xvi. 1031 A mixture of the isomeric formals is obtained from glycerol, trioxymethylene and conc. HCl at 100°. form-albumin n. Brit. /fɔːmˈalbjᵿmᵻn/ , U.S. /ˌfɔrmælˈbjumən/ (see quot. 1901). ΚΠ 1901 W. A. N. Dorland Illustr. Med. Dict. Form-albumin, a formaldehyd and casein compound; a yellowish powder, used as a wound-antiseptic. ˈformamide n. Brit. /ˈfɔːməmʌɪd/ , U.S. /ˈfɔrməˌmaɪd/ the amide of formic acid. ΘΚΠ the world > matter > chemistry > organic chemistry > amides > [noun] > others tartaric amide1789 cyanamide1838 sodamide1838 furfuramide1845 opiammone1845 formamide1852 param1866 tartranil1868 terephthalamide1868 sulphonamide1881 acrylamide1893 caprolactam1944 lysergic acid1952 thioTEPA1953 lipoamide1960 1852Formamide [see formanilide n.]. 1863 A. W. Hofmann in Jrnl. Chem. Soc. 16 72 Half-way between formate of ammonium and hydrocyanic acid, theory justifies us in searching for formamide. 1863 Jrnl. Chem. Soc. 16 74 In a partial vacuum, which reduces the boiling point to 140°, formamide may be distilled without the slightest decomposition. 1866 H. E. Roscoe Lessons Elem. Chem. xxxii. 285 Formamide... Obtained by acting on ethyl formate with ammonia. 1890 Lancet 11 Oct. 783/2 Injections..of a 1 per cent. solution of formamide of mercury. forˈmamidine n. Brit. /fɔːˈmamᵻdiːn/ , /fəˈmamᵻdiːn/ , U.S. /fɔrˈmæməˌdin/ , /fərˈmæməˌdin/ the postulated compound NH₂·CH:NH, which is known only as its salts. ΘΚΠ the world > matter > chemistry > organic chemistry > organic salts > [noun] > miscellaneous others alum zucarinea1425 white precipitate1588 volatile salt or salts1639 malate1788 oxalate1788 sebate1788 succinate1789 camphorate1800 suberate1800 tannate1802 formate1807 zymate1817 uranate1819 ambreate1820 fungate1821 hydriodide1823 sorbate1823 fulminate1824 uraniate1824 pinate1829 oleate1831 pectate1831 resinate1831 xanthate1831 formobenzoate1834 racemate1835 indigotate1838 japonate1838 oxalhydrate1838 oxalovinate1838 palmate1838 pyruvate1838 roccellate1838 rubinate1838 verdite1838 oxalurate1839 sesquisalt1839 palmitate1840 rhabarbarate1840 hippurate1841 palmitin1841 sericate1841 stearate1841 oenanthylate1843 humate1844 parabanate1844 urethylane1844 angelate1846 fungiate1847 nitroprusside1849 sodium nitroprusside1849 fulminurate1855 igasurate1855 inosinate1855 phenate1857 sinapate1857 styphnate1857 anchoate1858 parellate1858 toluate1860 piperate1862 fumarate1864 glycollate1864 hydurilate1865 hyoglycocholate1865 isamates1865 itaconates1865–72 paralactate1866 porphyrate1866 usnate1866 thebolactate1867 oxalonitrate1868 rhodanate1868 stearerate1868 terebate1868 terephthalate1868 thymotate1868 turpetholate1868 violurate1868 viridate1868 xanthide1868 glycocholate1872 xylate1872 xylidate1872 tiglate1875 peptonate1876 hydracrylate1877 thymolate1880 formamidine1882 carboxylate1884 nucleate1896 phytin1905 cacodylate1908 cupferron1910 protamine sulphate1915 metallic soap1918 pentaerythritol tetranitrate1923 phosphagen1927 phosphocreatine1927 viologen1933 pentachlorophenate1938 hyaluronate1946 tetraethylpyrophosphate1947 pteroylglutamate1948 inosate- 1882 Jrnl. Chem. Soc. 41 266 The solid therefore obtained by the action of the substance, 2HCN + 3HCl, upon alcohol is the hydrochloride of the base.. formamidine. 1952 Jrnl. Appl. Chem. 2 203 It is now possible to report a simple method for the synthesis of formamidine hydrochloride. forˈmanilide n. Brit. /fɔːˈmanᵻlʌɪd/ , /fɔːˈmanl̩ʌɪd/ , /fəˈmanᵻlʌɪd/ , /fəˈmanl̩ʌɪd/ , U.S. /fɔrˈmænəˌlaɪd/ , /fərˈmænəˌlaɪd/ a white crystalline compound, C₆H₅·NH·COH, used as an antipyretic, analgesic, and local anaesthetic. ΘΚΠ the world > matter > chemistry > organic chemistry > alkalamides > [noun] > anilides > named formanilide1852 tartranilide1868 1852 W. Gregory Handbk. Org. Chem. (ed. 3) 337 Formanilide, the analogous compound to which, formamide, is not known. 1966 I. T. Millar & H. D. Springall Sidgwick's Org. Chem. Nitrogen (ed. 3) vii. 224 The formylation of aromatic amines proceeds very readily; formanilide, H·CONHPh, is rapidly formed on boiling dilute formic acid with aniline. formeston n. Brit. /ˈfɔːmᵻst(ə)n/ , U.S. /ˈfɔrməst(ə)n/ ΚΠ 1908 Practitioner Feb. 280 Combination [of pure eston] with formic acid produced a more energetic substance. This has been called ‘Formeston’, the acetic acid of one of the valencies of the alumina hydrate being replaced by formic acid. 1925 T. L. Stedman Pract. Med. Dict. Formeston, aluminum acetoformate, a dusting powder similar to eston and subeston. This entry has not yet been fully updated (first published 1897; most recently modified version published online June 2018). < comb. form¹1852
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form-comb. form1

form-comb. form¹