smecticadj.n.

Etymology: < Latin smēcticus (Pliny), < Greek σμηκτικός , < σμήχειν to wipe, cleanse; compare smegma n.Previous versions of the OED give the stress as: ˈsmectic.

1. Cleansing, abstersive, detergent. rare.

ΘΚΠ

the world > physical sensation > cleanness and dirtiness > cleaning > [adjective]

cleansinga1300

mundifying1579

scouring1594

detergent1600

detersive1601

abstersory1609

abstergent1617

thorough-cleansing1642

deterging1651

smegmatic1656

extersive1657

tersive1667

smectic1676

1676 J. Evelyn Philos. Disc. Earth 40 Smooth to the touch, as the most Smectic Earths and Marles themselves.

1686 R. Plot Nat. Hist. Staffs. iii. 124 The Smectic and figuline Earths.

1858 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Smecticus, cleaning;..smectic.

2. Physical Chemistry. Applied to (the state of) a mesophase (a liquid crystal) in which the molecules all have the same orientation and are arranged in well-defined planes. Also as n., a smectic substance. Cf. nematic adj. [ < French smectique (G. Friedel 1922, in Ann. de Physique XVIII. 276).]

ΘΚΠ

the world > matter > chemistry > physical chemistry > mesophases > [adjective] > smectic

smectic1923

the world > matter > chemistry > physical chemistry > mesophases > [noun] > smectic

smectic1974

1923 Chem. Abstr. 17 3267 A complete treatise upon the types and properties of matter existent between the true amorphous and cryst. states. The condition formerly designated as liquid crystals or anisotropic liquids is divided into 2 classifications: smectic.., and nematic.

1936 Mineral. Abstr. VI. 237 In addition to the fuller's earths and smectic clays the series includes montmorillonite, confolensite, [etc.].

1940 S. Glasstone Text-bk. Physical Chem. vii. 505 In the smectic state normal liquid flow does not occur: the movement is of a gliding nature, in one plane.

1971 New Scientist 14 Jan. 63/2 Once the smectic mesophase had formed, the continuous or ‘closed’ bimolecular sheets would isolate the aqueous compartments from their neighbours.

1974 Nature 25 Jan. 178/3 As yet uncategorised smectics probably exist, for example, the smectic phase of 4′-n-octyl-4-cyanobiphenyl described by Gray.

This entry has not yet been fully updated (first published 1912; most recently modified version published online June 2019).

单词	smectic
释义	smecticadj.n. Etymology: < Latin smēcticus (Pliny), < Greek σμηκτικός , < σμήχειν to wipe, cleanse; compare smegma n.Previous versions of the OED give the stress as: ˈsmectic. 1. Cleansing, abstersive, detergent. rare. ΘΚΠ the world > physical sensation > cleanness and dirtiness > cleaning > [adjective] cleansinga1300 mundifying1579 scouring1594 detergent1600 detersive1601 abstersory1609 abstergent1617 thorough-cleansing1642 deterging1651 smegmatic1656 extersive1657 tersive1667 smectic1676 1676 J. Evelyn Philos. Disc. Earth 40 Smooth to the touch, as the most Smectic Earths and Marles themselves. 1686 R. Plot Nat. Hist. Staffs. iii. 124 The Smectic and figuline Earths. 1858 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Smecticus, cleaning;..smectic. 2. Physical Chemistry. Applied to (the state of) a mesophase (a liquid crystal) in which the molecules all have the same orientation and are arranged in well-defined planes. Also as n., a smectic substance. Cf. nematic adj. [ < French smectique (G. Friedel 1922, in Ann. de Physique XVIII. 276).] ΘΚΠ the world > matter > chemistry > physical chemistry > mesophases > [adjective] > smectic smectic1923 the world > matter > chemistry > physical chemistry > mesophases > [noun] > smectic smectic1974 1923 Chem. Abstr. 17 3267 A complete treatise upon the types and properties of matter existent between the true amorphous and cryst. states. The condition formerly designated as liquid crystals or anisotropic liquids is divided into 2 classifications: smectic.., and nematic. 1936 Mineral. Abstr. VI. 237 In addition to the fuller's earths and smectic clays the series includes montmorillonite, confolensite, [etc.]. 1940 S. Glasstone Text-bk. Physical Chem. vii. 505 In the smectic state normal liquid flow does not occur: the movement is of a gliding nature, in one plane. 1971 New Scientist 14 Jan. 63/2 Once the smectic mesophase had formed, the continuous or ‘closed’ bimolecular sheets would isolate the aqueous compartments from their neighbours. 1974 Nature 25 Jan. 178/3 As yet uncategorised smectics probably exist, for example, the smectic phase of 4′-n-octyl-4-cyanobiphenyl described by Gray. This entry has not yet been fully updated (first published 1912; most recently modified version published online June 2019). < adj.n.1676
随便看	biogenies biogenist biogenous biogens biogeny biogeochemical biogeochemically biogeochemicals biogeochemist biogeochemistries biogeochemistry biogeoclimatic biogeographer biogeographers biogeographic biogeographical biogeographically biogeographies biogeography biogeological biogeologist biogeology biogerontology bioglass biognosy