nematicadj.n.

Brit.

/nᵻˈmatɪk/,

/nɛˈmatɪk/, U.S.

/nəˈmædɪk/,

/nɛˈmædɪk/

Origin: A borrowing from French. Etymon: French nématique.

Etymology: < French nématique (G. Friedel 1922, in Ann. de Physique 18 227) < ancient Greek νήματ- , νῆμα thread (see nemato- comb. form) + French -ique -ic suffix.

Physical Chemistry.

A. adj.

Designating (the state of) a mesophase or liquid crystal in which the molecules all have the same orientation but are not arranged in well-defined planes (as they are in a smectic phase).

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nematic1923

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.

1940 S. Glasstone Text-bk. Physical Chem. vii. 505 Nematic liquids are closer to true anisotropic liquids than are the smectic phases.

1971 Physics Bull. June 357/2 One of Marconi's exhibits at this year's Physics Exhibition demonstrated the effective use of organic nematic liquid crystals for visual display purposes.

1987 Electronics & Wireless World Jan. 37/4 The nematic liquid crystals used for calculators..are simply not fast enough for television applications.

B. n.

A nematic substance.

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

nematic1972

1972 Sci. Amer. Mar. 39/1 (advt.) We hereby announce the commercial availability of a multicomponent nematic that might suffice to call off some chemists.

1974 Nature 25 Jan. 178/3 Nuclear magnetic resonance spectra of molecules oriented in themotropic and lyotropic nematics.

1989 New Scientist 2 Sept. 49/1 The difference is that the molecules of a smectic are more ordered than those of a nematic.

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	nematic
释义	nematicadj.n. Brit. /nᵻˈmatɪk/, /nɛˈmatɪk/, U.S. /nəˈmædɪk/, /nɛˈmædɪk/ Origin: A borrowing from French. Etymon: French nématique. Etymology: < French nématique (G. Friedel 1922, in Ann. de Physique 18 227) < ancient Greek νήματ- , νῆμα thread (see nemato- comb. form) + French -ique -ic suffix. Physical Chemistry. A. adj. Designating (the state of) a mesophase or liquid crystal in which the molecules all have the same orientation but are not arranged in well-defined planes (as they are in a smectic phase). ΘΚΠ the world > matter > chemistry > physical chemistry > mesophases > [adjective] > nematic nematic1923 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. 1940 S. Glasstone Text-bk. Physical Chem. vii. 505 Nematic liquids are closer to true anisotropic liquids than are the smectic phases. 1971 Physics Bull. June 357/2 One of Marconi's exhibits at this year's Physics Exhibition demonstrated the effective use of organic nematic liquid crystals for visual display purposes. 1987 Electronics & Wireless World Jan. 37/4 The nematic liquid crystals used for calculators..are simply not fast enough for television applications. B. n. A nematic substance. ΘΚΠ the world > matter > chemistry > physical chemistry > mesophases > [noun] > nematic nematic1972 1972 Sci. Amer. Mar. 39/1 (advt.) We hereby announce the commercial availability of a multicomponent nematic that might suffice to call off some chemists. 1974 Nature 25 Jan. 178/3 Nuclear magnetic resonance spectra of molecules oriented in themotropic and lyotropic nematics. 1989 New Scientist 2 Sept. 49/1 The difference is that the molecules of a smectic are more ordered than those of a nematic. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < adj.n.1923
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