fluorn.¹

Brit.

/ˈfluːɔː/, U.S.

/ˈfluɔr/

Forms: 1600s fluour, 1600s– fluor.

Origin: A borrowing from Latin. Etymon: Latin fluor.

Etymology: < classical Latin fluor (in medical context) morbid discharge, flux, (in general context) flow, stream (2nd cent. ad), in post-classical Latin also menstruation (5th cent. in Augustine), mineral resembling a gem (1546 in Agricola Bermannus: see below), such a mineral containing fluorine (1741 or earlier in a German source in fluor spathosus ‘fluorspar’, after German Flussspat : see fluorspar n.) < fluere to flow (see fluent adj.) + -or -or suffix. Compare Middle French, French flueur flow of a liquid, stream (a1365; 1430 with reference to the tides of the sea), any of a class of minerals useful as fluxes in smelting (1554), (in plural flueurs; now archaic) menstruation (1552; rare between the mid 17th and early 19th centuries).Agricola ( Bermannus (1546)) uses post-classical Latin fluores (plural) to translate early modern German flusse (plural) fluxes used in smelting (see flux n. 11; 1546 in this sense, in a glossary in the same source), plural of fluss fluss n.; he notes that the term is apt, as the minerals are formed ‘by conflux’ (Hellenistic Greek ἐκ συρροῆς (Theophrastus)). With sense 1b compare French fluor (adjective) fluoric (1723), (noun) fluorine (1823), also fluorspar, German Fluor fluorine (1812 or earlier; earlier German chemical texts use Fluss fluss n. and Flussspat to denote various minerals containing fluorine), both < post-classical Latin. Compare also slightly earlier fluorspar n. and later fluorine n. With sense 2 compare earlier flower n. 2b. In sense Compounds 1 after French fluor, adjective (see above). In plural form fluores after the Latin plural form.

1. Mineralogy.

†a. Any of a class of minerals resembling gems, but less hard and more readily fusible, and useful as fluxes in smelting. Obsolete.

ΘΚΠ

the world > the earth > minerals > types of mineral > [noun] > other general types

fluor1610

sulphur1799

amygdule1877

heavy mineral1893

fem1902

sal1902

stress mineral1913

opaque1960

1610 P. Holland tr. W. Camden Brit. 557 Sometimes in these mines or quarries is found a certaine white Fluor [L. fluor quidam candidus] (for such stones comming out of Mines, that bee like unto precious stones, learned minerall men call Fluores) which for all the world resembleth Christall.

1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia Isagoge sig. E8 Some of them [sc. minerals] may be Liquefied by..fire, as metallick fluores.

1676 Philos. Trans. (Royal Soc.) 11 728 This Stone is in substance a whitish opaque fluor.

1747 Gentleman's Mag. Nov. 523/1 Most of their lapilli are a fluor of the stalactite kind.

1756 P. Browne Civil & Nat. Hist. Jamaica ii. i. 48 They seem to be formed chiefly of the vitrescent fluor, debased by a less agitated or divided clay.

b. Such a mineral containing fluorine; esp. = fluorspar n. Also: = fluorine n. Now rare.

ΘΚΠ

the world > the earth > minerals > types of mineral > halides > [noun] > fluorite group > calcium fluoride

fluorspar?1770

Derbyshire spar1772

fluor1772

tiger-stone1829

fluorite1844

spodiosite1887

1772 J. R. Forster Easy Method Assaying & Classing Mineral Substances 10 This kind of spar, or fluor, has lately been found, by the experiments of Mr. Scheele, to consist of a common calcareous earth, and an acid sui generis, or acid of fluor.

1776 J. Priestley Exper. & Observ. Air (ed. 2) II. 187 A substance which the chymists distinguish by the name of fluor..which, with us, is called Derbyshire Spar.

1802 J. Playfair Illustr. Huttonian Theory 17 The strata are consolidated..by quartz, by fluor, by feltspar.

1858 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Phthoricus..applied by Guibourt to..binary compounds, in which..fluor, or fluorine, performs the part of a negative element.

1866 J. Ruskin Ethics of Dust 159 The fluor of Chamouni is rose-coloured..while the fluor of Weardale is green.

1920 Brit. Mus. Returns 143 in Parl. Papers XXXVI. 673 A series of 72 selected specimens collected in Derbyshire, Cumberland, and Dumfriesshire, including fluor,..scheelite, pilolite, hausmannite, &c.

1999 I. Kostov & R. I. Kostov Crystal Habits Minerals vi. 158 In the structure of fluorite CaF₂ each Ca atom is surrounded by eight fluor atoms hexaedrically.

†2. In plural. Menstruation; menstrual periods; = flower n. 2b. Cf. bloody flux n. Obsolete.

ΘΚΠ

the world > life > the body > organs of excretion > excretions > menses > [noun]

monthlyeOE

menstruuma1398

flowerc1400

menstrue?a1425

women's evilc1450

menstruosity1503

courses1563

monthly time1564

reds1568

month courses1574

purgation1577

women's courses1577

month1578

menses1597

menstruals1598

flourish1606

nature1607

fluors1621

mois1662

period1690

catamenia1764

turn1819

visitor1980

1621 H. Ainsworth Annot. Five Bks. Moses & Bk. Psalmes Gen. xviii. 11 The custome (or manner) of women, for the ordinary and naturall course of the body, or fluors.

1662 J. Trapp Comm. Old & New Test. (2 Sam. xi. 4) 257 Her monethly fluors.

1724 T. Lewis Origines Hebrææ II. iv. ix. 533 The Woman was esteem'd unclean with as contagious a Pollution as in the seven Days of her Separation for the Infirmity of her Monthly Fluors.

†3. A flow or flowing; a flux, a stream. Also: = effluvium n. 2b. Obsolete.

ΘΚΠ

the world > the earth > water > flow or flowing > [noun]

runninga1398

goutc1400

stream14..

flowingc1440

watercourse1552

current1555

fluxc1600

gliding1600

fluor1642

currency1657

lapse1667

shoot1799

flowage1830

come1862

the world > matter > liquid > liquid flow > action or process of flowing > [noun]

flowingc950

flowa1450

defluxionc1550

fluxion1555

fluxc1600

fluor1642

the world > physical sensation > smell and odour > [noun]

smacka1000

breathOE

smella1175

irea1300

weffea1300

thefa1325

relesec1330

odour?c1335

incensea1340

flair1340

savoura1350

smellingc1386

flavourc1400

fumec1400

reflairc1400

air?a1439

scent?1473

taste?c1475

verdure1520

senteur1601

waft1611

effluvium1656

fluor1671

burning scent1681

aura1732

fumet1735

snuff1763

olfacient1822

odouret1825

waff1827

gush1841

sniff1844

tang1858

nose1894

1642 H. More Ψυχωδια Platonica Interpr. Unusuall Names sig. Q^v Æther,..a fierie fluour, or a fluid fire.

1644 K. Digby Two Treat. i. xxi. 189 These fluours do proceed out of the very substance and nature of the loadestone.

1664 H. Power Exper. Philos. iii. 156 Electrical fluors do presently recoil by short streight lines to their Bodies again.

1671 R. Bohun Disc. Wind 54 They blow not in one constant fluor, or streame, but in gusts.

†4. Something that is fluid, a fluid mass; (in plural) the humours (of the body). Also: a fluid state, fluidity, esp. with regard to substances ordinarily solid. Obsolete.

ΘΚΠ

the world > matter > liquid > [noun]

liquor?c1225

aquaa1398

moisture?1406

subtilesa1598

fluxure1603

aq.1639

fluor1654

fluid1661

liquid1708

the world > life > the body > secretory organs > secretion > [noun] > fluid secretion > humours > collection of

complexionc1374

fluor1665

the world > matter > liquid > [noun] > quality or condition of being > when ordinarily solid

fluor1684

1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana iii. xiii. 321 Such is not Quick-silver, nor any of those Fluors.

1665 G. Harvey Disc. Plague 2 Pestilential Miasms, insinuating into the humoral..parts of the Body..then corrupting the fluors.

1684 T. Burnet Theory of Earth ii. 210 A peculiar ferment that..dissolves the parts of the meat, and melts them into a fluor or pulp.

1686 J. Goad Astro-meteorologica i. ix. 31 Rarity is nothing but a Privation of Density..Fluor of Solidity.

1718 I. Newton Opticks (ed. 2) iii. i. 371 Those Agitations which keep Liquors in a Fluor.

1758 A. Reid tr. P. J. Macquer Elements Theory & Pract. Chym. I. 22 Certain Salts melt as soon as they are exposed to the fire... But this fluor which they so readily acquire must be carefully distinguished from actual fusion: for it is owing only to their superfluous humidity.

Compounds

†C1. attributive. Chemistry. [In sense 4.] Designating or characteristic of a substance which is not susceptible to crystallization, or is typically fluid at room temperature. Obsolete.

ΚΠ

1771 J. Keir tr. P. J. Macquer Dict. Chem. II. 677 Many substances are capable of uniting without being precisely saturated, such as water with..fluor acids [Fr. acides fluors], fixed vegetable alkali, fluor volatile alkali.., and spirit of wine.

1771 J. Keir tr. P. J. Macquer Dict. Chem. II. 653 Crystallizable Salts... [This name] is contrary to that of fluor salts, by which are distinguished saline substances that cannot be obtained in a crystallized concrete form, such as nitrous and marine acids.

1804 W. Nicholson tr. A.-F. de Fourcroy Gen. Syst. Chem. Knowl. II. 323 Ammonia, the fifth and weakest kind of alkali, was formerly denominated..volatile spirit of sal ammoniac, fluor volatile alkali, and caustic volatile alkali.

1808 W. Nicholson Dict. Pract. & Theoret. Chem. at cited word This word has been used to distinguish such bodies as are for the most part fluid in the temperature of the atmosphere. Thus, for example, the fluor acids, the fluor volatile alkali, are terms sometimes used.

C2.

fluor acid n. Chemistry †(a) any acid which is fluid at room temperature, or is not susceptible to crystallization (obsolete); (b) = hydrofluoric acid at hydrofluoric adj. (now chiefly historical). [In sense (a) after French †acide fluor (1766 in the passage translated in quot. 1771).]

ΘΚΠ

the world > matter > chemistry > elements and compounds > hydrogen > [noun] > in chemical combination with fluorine

fluor acid1771

1771 J. Keir tr. P. J. Macquer Dict. Chem. I. 46 Fluor acids [Fr. Des acides fluors], or what are properly called essential salts, which are nothing else than concrete acids rendered solid by a portion of oil and earth.

1775 J. Priestley Exper. & Observ. Air II. Introd. xli Corks and tubes, will be found very sufficient, and much less expensive; especially with the fluor acid; which corrodes glass.

1791 S. Tennant in Philos. Trans. (Royal Soc.) 81 184 A compound..of fluor acid and calcareous earth.

1828 N. Webster Amer. Dict. Eng. Lang. Fluor-acid, the acid of fluor.

1922 T. M. Lowry Inorg. Chem. xxiv. 295 The hydride, hydrogen fluoride, HF, has been known under the name of fluor acid as an agent for etching glass since 1670... The element was, however, not isolated until 1886.

2005 J. Plunkett in S. Popple & V. Toulmin Visual Delights Two xiv. 180 The glass would be treated with fluor acid in order that it could be painted like an etching.

fluor acid air n. Chemistry (now historical) a colourless gas produced by Priestley in experiments with fluorspar, probably mainly silicon tetrafluoride (SiF₄) resulting from the reaction of hydrofluoric acid with glass.

ΚΠ

1775 J. Priestley Exper. & Observ. Air II. 197 It is sufficiently intitled to a peculiar appellation, viz. that of the Fluor acid air.

1794 R. J. Sulivan View of Nature I. 230 Fluor acid air, or sparry air.

1878 H. E. Roscoe & C. Schorlemmer Treat. Chem. (new ed.) I. 16 Priestley..likewise collected many gases for the first time over mercury, thus ammoniacal gas (alkaline air), hydrochloric acid gas (marine acid air), sulphurous acid gas (vitriolic acid air), and silicon tetrafluoride (fluor acid air).

2004 R. E. Schofield Enlightened Joseph Priestley ix. 187 Book 6 dealt with the various airs that were readily absorbed by water: marine acid air, vitriolic acid air, fluor acid air, and alkaline air.

fluor albus n. [ < post-classical Latin fluor albus (1546 or earlier; < classical Latin fluor fluor n.¹ + albus white: see album n.²)] now rare = leucorrhœa n.

ΘΚΠ

the world > health and disease > ill health > a disease > discharge or flux > [noun] > leucorrhoea

white flux1526

album1527

white1527

white flood1527

white menstruosity1599

fluor albus1659

eluvies1710

leucorrhœa1797

xanthorrhœa1891

1659 W. Charleton Nat. Hist. Nutrition 145 More women (especially in this our moist Iland) are troubled with the Fluor albus, all the time of their Gravidation.

1752 W. Smellie Treat. Midwifery I. 110 The Fluor albus is no other than this Mucus discharged in too great quantity.

1797 Encycl. Brit. XI. 231/1 The Leucorrhœa, Fluor Albus, or Whites.

1825 Med. Adviser 12 Feb. 103/1 It stops hemorrhages, diarhœas [sic], fluor albus, and rubor, with certain weakness, and even a gonorrhœa.

1826 R. Mills Statistics S. Carolina 94 Comfrey..good in dysentery, bowel complaints, and fluor albus.

1922 Vet. Med. 17 128/1 If the examination of the uterus reveals a chronic fluor albus, treatment may be inaugurated.

1992 P. O'Brian Truelove iii. 76 Eminent physicians have been deceived by the fluor albus, for example.

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	fluor
释义	fluorn.¹ Brit. /ˈfluːɔː/, U.S. /ˈfluɔr/ Forms: 1600s fluour, 1600s– fluor. Origin: A borrowing from Latin. Etymon: Latin fluor. Etymology: < classical Latin fluor (in medical context) morbid discharge, flux, (in general context) flow, stream (2nd cent. ad), in post-classical Latin also menstruation (5th cent. in Augustine), mineral resembling a gem (1546 in Agricola Bermannus: see below), such a mineral containing fluorine (1741 or earlier in a German source in fluor spathosus ‘fluorspar’, after German Flussspat : see fluorspar n.) < fluere to flow (see fluent adj.) + -or -or suffix. Compare Middle French, French flueur flow of a liquid, stream (a1365; 1430 with reference to the tides of the sea), any of a class of minerals useful as fluxes in smelting (1554), (in plural flueurs; now archaic) menstruation (1552; rare between the mid 17th and early 19th centuries).Agricola ( Bermannus (1546)) uses post-classical Latin fluores (plural) to translate early modern German flusse (plural) fluxes used in smelting (see flux n. 11; 1546 in this sense, in a glossary in the same source), plural of fluss fluss n.; he notes that the term is apt, as the minerals are formed ‘by conflux’ (Hellenistic Greek ἐκ συρροῆς (Theophrastus)). With sense 1b compare French fluor (adjective) fluoric (1723), (noun) fluorine (1823), also fluorspar, German Fluor fluorine (1812 or earlier; earlier German chemical texts use Fluss fluss n. and Flussspat to denote various minerals containing fluorine), both < post-classical Latin. Compare also slightly earlier fluorspar n. and later fluorine n. With sense 2 compare earlier flower n. 2b. In sense Compounds 1 after French fluor, adjective (see above). In plural form fluores after the Latin plural form. 1. Mineralogy. †a. Any of a class of minerals resembling gems, but less hard and more readily fusible, and useful as fluxes in smelting. Obsolete. ΘΚΠ the world > the earth > minerals > types of mineral > [noun] > other general types fluor1610 sulphur1799 amygdule1877 heavy mineral1893 fem1902 sal1902 stress mineral1913 opaque1960 1610 P. Holland tr. W. Camden Brit. 557 Sometimes in these mines or quarries is found a certaine white Fluor [L. fluor quidam candidus] (for such stones comming out of Mines, that bee like unto precious stones, learned minerall men call Fluores) which for all the world resembleth Christall. 1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia Isagoge sig. E8 Some of them [sc. minerals] may be Liquefied by..fire, as metallick fluores. 1676 Philos. Trans. (Royal Soc.) 11 728 This Stone is in substance a whitish opaque fluor. 1747 Gentleman's Mag. Nov. 523/1 Most of their lapilli are a fluor of the stalactite kind. 1756 P. Browne Civil & Nat. Hist. Jamaica ii. i. 48 They seem to be formed chiefly of the vitrescent fluor, debased by a less agitated or divided clay. b. Such a mineral containing fluorine; esp. = fluorspar n. Also: = fluorine n. Now rare. ΘΚΠ the world > the earth > minerals > types of mineral > halides > [noun] > fluorite group > calcium fluoride fluorspar?1770 Derbyshire spar1772 fluor1772 tiger-stone1829 fluorite1844 spodiosite1887 1772 J. R. Forster Easy Method Assaying & Classing Mineral Substances 10 This kind of spar, or fluor, has lately been found, by the experiments of Mr. Scheele, to consist of a common calcareous earth, and an acid sui generis, or acid of fluor. 1776 J. Priestley Exper. & Observ. Air (ed. 2) II. 187 A substance which the chymists distinguish by the name of fluor..which, with us, is called Derbyshire Spar. 1802 J. Playfair Illustr. Huttonian Theory 17 The strata are consolidated..by quartz, by fluor, by feltspar. 1858 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Phthoricus..applied by Guibourt to..binary compounds, in which..fluor, or fluorine, performs the part of a negative element. 1866 J. Ruskin Ethics of Dust 159 The fluor of Chamouni is rose-coloured..while the fluor of Weardale is green. 1920 Brit. Mus. Returns 143 in Parl. Papers XXXVI. 673 A series of 72 selected specimens collected in Derbyshire, Cumberland, and Dumfriesshire, including fluor,..scheelite, pilolite, hausmannite, &c. 1999 I. Kostov & R. I. Kostov Crystal Habits Minerals vi. 158 In the structure of fluorite CaF₂ each Ca atom is surrounded by eight fluor atoms hexaedrically. †2. In plural. Menstruation; menstrual periods; = flower n. 2b. Cf. bloody flux n. Obsolete. ΘΚΠ the world > life > the body > organs of excretion > excretions > menses > [noun] monthlyeOE menstruuma1398 flowerc1400 menstrue?a1425 women's evilc1450 menstruosity1503 courses1563 monthly time1564 reds1568 month courses1574 purgation1577 women's courses1577 month1578 menses1597 menstruals1598 flourish1606 nature1607 fluors1621 mois1662 period1690 catamenia1764 turn1819 visitor1980 1621 H. Ainsworth Annot. Five Bks. Moses & Bk. Psalmes Gen. xviii. 11 The custome (or manner) of women, for the ordinary and naturall course of the body, or fluors. 1662 J. Trapp Comm. Old & New Test. (2 Sam. xi. 4) 257 Her monethly fluors. 1724 T. Lewis Origines Hebrææ II. iv. ix. 533 The Woman was esteem'd unclean with as contagious a Pollution as in the seven Days of her Separation for the Infirmity of her Monthly Fluors. †3. A flow or flowing; a flux, a stream. Also: = effluvium n. 2b. Obsolete. ΘΚΠ the world > the earth > water > flow or flowing > [noun] runninga1398 goutc1400 stream14.. flowingc1440 watercourse1552 current1555 fluxc1600 gliding1600 fluor1642 currency1657 lapse1667 shoot1799 flowage1830 come1862 the world > matter > liquid > liquid flow > action or process of flowing > [noun] flowingc950 flowa1450 defluxionc1550 fluxion1555 fluxc1600 fluor1642 the world > physical sensation > smell and odour > [noun] smacka1000 breathOE smella1175 irea1300 weffea1300 thefa1325 relesec1330 odour?c1335 incensea1340 flair1340 savoura1350 smellingc1386 flavourc1400 fumec1400 reflairc1400 air?a1439 scent?1473 taste?c1475 verdure1520 senteur1601 waft1611 effluvium1656 fluor1671 burning scent1681 aura1732 fumet1735 snuff1763 olfacient1822 odouret1825 waff1827 gush1841 sniff1844 tang1858 nose1894 1642 H. More Ψυχωδια Platonica Interpr. Unusuall Names sig. Q^v Æther,..a fierie fluour, or a fluid fire. 1644 K. Digby Two Treat. i. xxi. 189 These fluours do proceed out of the very substance and nature of the loadestone. 1664 H. Power Exper. Philos. iii. 156 Electrical fluors do presently recoil by short streight lines to their Bodies again. 1671 R. Bohun Disc. Wind 54 They blow not in one constant fluor, or streame, but in gusts. †4. Something that is fluid, a fluid mass; (in plural) the humours (of the body). Also: a fluid state, fluidity, esp. with regard to substances ordinarily solid. Obsolete. ΘΚΠ the world > matter > liquid > [noun] liquor?c1225 aquaa1398 moisture?1406 subtilesa1598 fluxure1603 aq.1639 fluor1654 fluid1661 liquid1708 the world > life > the body > secretory organs > secretion > [noun] > fluid secretion > humours > collection of complexionc1374 fluor1665 the world > matter > liquid > [noun] > quality or condition of being > when ordinarily solid fluor1684 1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana iii. xiii. 321 Such is not Quick-silver, nor any of those Fluors. 1665 G. Harvey Disc. Plague 2 Pestilential Miasms, insinuating into the humoral..parts of the Body..then corrupting the fluors. 1684 T. Burnet Theory of Earth ii. 210 A peculiar ferment that..dissolves the parts of the meat, and melts them into a fluor or pulp. 1686 J. Goad Astro-meteorologica i. ix. 31 Rarity is nothing but a Privation of Density..Fluor of Solidity. 1718 I. Newton Opticks (ed. 2) iii. i. 371 Those Agitations which keep Liquors in a Fluor. 1758 A. Reid tr. P. J. Macquer Elements Theory & Pract. Chym. I. 22 Certain Salts melt as soon as they are exposed to the fire... But this fluor which they so readily acquire must be carefully distinguished from actual fusion: for it is owing only to their superfluous humidity. Compounds †C1. attributive. Chemistry. [In sense 4.] Designating or characteristic of a substance which is not susceptible to crystallization, or is typically fluid at room temperature. Obsolete. ΚΠ 1771 J. Keir tr. P. J. Macquer Dict. Chem. II. 677 Many substances are capable of uniting without being precisely saturated, such as water with..fluor acids [Fr. acides fluors], fixed vegetable alkali, fluor volatile alkali.., and spirit of wine. 1771 J. Keir tr. P. J. Macquer Dict. Chem. II. 653 Crystallizable Salts... [This name] is contrary to that of fluor salts, by which are distinguished saline substances that cannot be obtained in a crystallized concrete form, such as nitrous and marine acids. 1804 W. Nicholson tr. A.-F. de Fourcroy Gen. Syst. Chem. Knowl. II. 323 Ammonia, the fifth and weakest kind of alkali, was formerly denominated..volatile spirit of sal ammoniac, fluor volatile alkali, and caustic volatile alkali. 1808 W. Nicholson Dict. Pract. & Theoret. Chem. at cited word This word has been used to distinguish such bodies as are for the most part fluid in the temperature of the atmosphere. Thus, for example, the fluor acids, the fluor volatile alkali, are terms sometimes used. C2. fluor acid n. Chemistry †(a) any acid which is fluid at room temperature, or is not susceptible to crystallization (obsolete); (b) = hydrofluoric acid at hydrofluoric adj. (now chiefly historical). [In sense (a) after French †acide fluor (1766 in the passage translated in quot. 1771).] ΘΚΠ the world > matter > chemistry > elements and compounds > hydrogen > [noun] > in chemical combination with fluorine fluor acid1771 1771 J. Keir tr. P. J. Macquer Dict. Chem. I. 46 Fluor acids [Fr. Des acides fluors], or what are properly called essential salts, which are nothing else than concrete acids rendered solid by a portion of oil and earth. 1775 J. Priestley Exper. & Observ. Air II. Introd. xli Corks and tubes, will be found very sufficient, and much less expensive; especially with the fluor acid; which corrodes glass. 1791 S. Tennant in Philos. Trans. (Royal Soc.) 81 184 A compound..of fluor acid and calcareous earth. 1828 N. Webster Amer. Dict. Eng. Lang. Fluor-acid, the acid of fluor. 1922 T. M. Lowry Inorg. Chem. xxiv. 295 The hydride, hydrogen fluoride, HF, has been known under the name of fluor acid as an agent for etching glass since 1670... The element was, however, not isolated until 1886. 2005 J. Plunkett in S. Popple & V. Toulmin Visual Delights Two xiv. 180 The glass would be treated with fluor acid in order that it could be painted like an etching. fluor acid air n. Chemistry (now historical) a colourless gas produced by Priestley in experiments with fluorspar, probably mainly silicon tetrafluoride (SiF₄) resulting from the reaction of hydrofluoric acid with glass. ΚΠ 1775 J. Priestley Exper. & Observ. Air II. 197 It is sufficiently intitled to a peculiar appellation, viz. that of the Fluor acid air. 1794 R. J. Sulivan View of Nature I. 230 Fluor acid air, or sparry air. 1878 H. E. Roscoe & C. Schorlemmer Treat. Chem. (new ed.) I. 16 Priestley..likewise collected many gases for the first time over mercury, thus ammoniacal gas (alkaline air), hydrochloric acid gas (marine acid air), sulphurous acid gas (vitriolic acid air), and silicon tetrafluoride (fluor acid air). 2004 R. E. Schofield Enlightened Joseph Priestley ix. 187 Book 6 dealt with the various airs that were readily absorbed by water: marine acid air, vitriolic acid air, fluor acid air, and alkaline air. fluor albus n. [ < post-classical Latin fluor albus (1546 or earlier; < classical Latin fluor fluor n.¹ + albus white: see album n.²)] now rare = leucorrhœa n. ΘΚΠ the world > health and disease > ill health > a disease > discharge or flux > [noun] > leucorrhoea white flux1526 album1527 white1527 white flood1527 white menstruosity1599 fluor albus1659 eluvies1710 leucorrhœa1797 xanthorrhœa1891 1659 W. Charleton Nat. Hist. Nutrition 145 More women (especially in this our moist Iland) are troubled with the Fluor albus, all the time of their Gravidation. 1752 W. Smellie Treat. Midwifery I. 110 The Fluor albus is no other than this Mucus discharged in too great quantity. 1797 Encycl. Brit. XI. 231/1 The Leucorrhœa, Fluor Albus, or Whites. 1825 Med. Adviser 12 Feb. 103/1 It stops hemorrhages, diarhœas [sic], fluor albus, and rubor, with certain weakness, and even a gonorrhœa. 1826 R. Mills Statistics S. Carolina 94 Comfrey..good in dysentery, bowel complaints, and fluor albus. 1922 Vet. Med. 17 128/1 If the examination of the uterus reveals a chronic fluor albus, treatment may be inaugurated. 1992 P. O'Brian Truelove iii. 76 Eminent physicians have been deceived by the fluor albus, for example. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). fluorn.² Brit. /ˈfluːɔː/, U.S. /ˈfluɔr/ Origin: Formed within English, by clipping or shortening. Etymon: fluorescent adj. Etymology: < fluor- (in fluorescent adj.). Science. A substance that fluoresces when struck by high-energy photons; esp. one used in fluorography (fluorography n. 2b). Cf. scintillator n. 2a. ΚΠ 1945 Brit. Patent 566,117 7/2 These inks are made by dissolving the dyes in 20% gum arabic solution and then grinding the fluorescent ingredient (termed fluor) into the gum arabic and dye solution. 1971 Methods in Microbiol. 5 136 The brighteners were said to be more useful than the well known vital fluors, such as acridine orange, fluoresceins and rhodamine. 1988 BioFactors 1 173/1 Radioactivity measurements were performed..on a Beckman model LS1801 scintillation counter with Beckman BP/b scintillation fluor. 2008 R. C. Michaelis et al. Litigator's Guide DNA iii. 81 Four different fluors are used to label the alleles from the different markers in the test kit. This is a new entry (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.¹1610n.²1945
随便看	in lower case in lozenge in luck in lump in lure in mangle in manifold in manner in manner following in manner of in manuscript in many in many respects in many stounds in map in march in marriage in mash in mask in masker in masquerade in masquery in mass in matter of fact in maugre

fluorn.1

Compounds

fluorn.2

fluorn.¹

fluorn.²