periclinen.

Brit.

/ˈpɛrᵻklʌɪn/, U.S.

/ˈpɛrəˌklaɪn/

Forms: 1800s periclin (in sense 1), 1800s perikline (in sense 1), 1800s– pericline.

Origin: Of multiple origins. Partly a borrowing from German. Partly a borrowing from French. Partly formed within English, by derivation. Etymons: German Periklin ; French péricline ; peri- prefix, -cline comb. form.

Etymology: In sense 1 < German Periklin (A. Breithaupt Vollständige Charakteristik des Mineral-Syst. (1823) 273) < Hellenistic Greek περικλινής sloping all round, on all sides < ancient Greek περι- peri- prefix + the stem of κλίνειν to bend, lean (see clino- comb. form); in reference to the great inclination between the terminal and lateral faces. In sense 2 < French péricline (H. Cassini 1818, in Dict. des sciences naturelles X. 142; compare periclinium n.) < Hellenistic Greek περικλινής (see above). In sense 3 < peri- prefix + -cline comb. form, after anticline n.

1. Mineralogy. A variety of albite occurring as large elongated white crystals, often twinned. Frequently attributive.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > plagioclase > albites

albite1817

pericline1832

adinole1835

peristerite1843

potass-albite1850

zygadite1861

albitite1896

1832 C. U. Shepard Treat. Mineral. 186 Perikline. Heterotomous feldspar.

1868 J. D. Dana Syst. Mineral. (ed. 5) 350 Pericline is in large, opaque, white crystals.

1898 Naturalist 176 A zonal structure as well as twinning both on the pericline and albite plans.

1926 Amer. Mineralogist 11 239 (title) Euhedral oligoclase of pericline habit from Medicine Bow Mountains, Wyoming.

1940 Proc. Royal Soc. A. 174 64 Triclinic crystals twinned on the pericline law.

1992 Geologia Sudetica 26 35 On the basis of the orientation of the relic pericline composition plane in albite,..this mineral formed pseudomorphs after primary plagioclase of the oligoclase-andesine composition.

2. Botany. The involucre of a plant of the family Asteraceae ( Compositae). Now rare.

ΘΚΠ

the world > plants > particular plants > plants and herbs > according to family > Compositae (composite plants) > [noun] > composite plant > part of plant

flower1530

pale1578

thrum1578

blade1672

floret1672

semi-floscule1720

radius1727

ray1727

semi-floret1729

egret1785

floscule1785

anthodium1812

periclinium1826

pericline1855

chaff-scale1856

phyllary1857

anthode1865

arrowlet1872

1855 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Inappendiculatus,..applied by H. Cassini to the bracteæ of the pericline of the Synanthereæ,..inappendiculate.

1866 J. T. B. Syme Eng. Bot. (ed. 3) V. 1 Leaves (phyllaries) of the involucre (pericline) resembling the sepals of a calyx.

1908 Ann. Sc. Nat. Hist. 17 114 H[ieracium] subtruncatum, Beeby, sp. nov... Peduncles sparingly floccose... Pericline somewhat rounded below, outer phyllaries short ovate, inner lanceolate.

1946 Rep. for 1943–4, Bot. Soc. & Exch. Club 12 683 The capitula are..2.8–3.3 cm. long and 1.3–1.7 cm. wide, the pericline narrowing upwards from a broad base.

3. Geomorphology. Chiefly British. A periclinal fold or dome. Cf. anticline n.

ΘΚΠ

the world > the earth > structure of the earth > structural features > fold or dip > [noun] > anticline

anticlinal1849

anticline1861

upfold1902

pericline1915

1915 Geogr. Jrnl. 46 127 The elliptical plan is due to the fact that the structure is generally a pericline.

1962 Sci. Proc. Royal Dublin Soc. A. 1 233 The lower Palaeozoic rocks of the Slieve Bernagh inlier form the core of an Armorican pericline.

1993 Jrnl. Geol. Soc. 150 729 Blackdown pericline is the western pericline of the Mendip Hills.

Compounds

pericline twin n. Crystallography a twin crystal in which the macro-axis is the axis of twinning, as often occurs in crystals of pericline.

ΚΠ

1877 E. S. Dana Text-bk. Mineral. ii. 302 Albite... Twins:..twinning-axis, the microdiagonal axis (b), the pericline twins.

1999 I. Kostov & R. I. Kostov Crystal Habits Minerals iii. 35 Triclinic system... Pericline twins with [101] as twin-axis and composition-plane corresponding to the so-called rhombic section.

pericline twinning n. Crystallography twinning of the kind exemplified by pericline.

ΚΠ

1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) vi. 326 The composition-face in this pericline twinning is a plane passing through the crystal.

1997 Clay & Clay Minerals 45 404 The host microcline contains albite and pericline twinning textures that vary in character.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	pericline
释义	periclinen. Brit. /ˈpɛrᵻklʌɪn/, U.S. /ˈpɛrəˌklaɪn/ Forms: 1800s periclin (in sense 1), 1800s perikline (in sense 1), 1800s– pericline. Origin: Of multiple origins. Partly a borrowing from German. Partly a borrowing from French. Partly formed within English, by derivation. Etymons: German Periklin ; French péricline ; peri- prefix, -cline comb. form. Etymology: In sense 1 < German Periklin (A. Breithaupt Vollständige Charakteristik des Mineral-Syst. (1823) 273) < Hellenistic Greek περικλινής sloping all round, on all sides < ancient Greek περι- peri- prefix + the stem of κλίνειν to bend, lean (see clino- comb. form); in reference to the great inclination between the terminal and lateral faces. In sense 2 < French péricline (H. Cassini 1818, in Dict. des sciences naturelles X. 142; compare periclinium n.) < Hellenistic Greek περικλινής (see above). In sense 3 < peri- prefix + -cline comb. form, after anticline n. 1. Mineralogy. A variety of albite occurring as large elongated white crystals, often twinned. Frequently attributive. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > plagioclase > albites albite1817 pericline1832 adinole1835 peristerite1843 potass-albite1850 zygadite1861 albitite1896 1832 C. U. Shepard Treat. Mineral. 186 Perikline. Heterotomous feldspar. 1868 J. D. Dana Syst. Mineral. (ed. 5) 350 Pericline is in large, opaque, white crystals. 1898 Naturalist 176 A zonal structure as well as twinning both on the pericline and albite plans. 1926 Amer. Mineralogist 11 239 (title) Euhedral oligoclase of pericline habit from Medicine Bow Mountains, Wyoming. 1940 Proc. Royal Soc. A. 174 64 Triclinic crystals twinned on the pericline law. 1992 Geologia Sudetica 26 35 On the basis of the orientation of the relic pericline composition plane in albite,..this mineral formed pseudomorphs after primary plagioclase of the oligoclase-andesine composition. 2. Botany. The involucre of a plant of the family Asteraceae ( Compositae). Now rare. ΘΚΠ the world > plants > particular plants > plants and herbs > according to family > Compositae (composite plants) > [noun] > composite plant > part of plant flower1530 pale1578 thrum1578 blade1672 floret1672 semi-floscule1720 radius1727 ray1727 semi-floret1729 egret1785 floscule1785 anthodium1812 periclinium1826 pericline1855 chaff-scale1856 phyllary1857 anthode1865 arrowlet1872 1855 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Inappendiculatus,..applied by H. Cassini to the bracteæ of the pericline of the Synanthereæ,..inappendiculate. 1866 J. T. B. Syme Eng. Bot. (ed. 3) V. 1 Leaves (phyllaries) of the involucre (pericline) resembling the sepals of a calyx. 1908 Ann. Sc. Nat. Hist. 17 114 H[ieracium] subtruncatum, Beeby, sp. nov... Peduncles sparingly floccose... Pericline somewhat rounded below, outer phyllaries short ovate, inner lanceolate. 1946 Rep. for 1943–4, Bot. Soc. & Exch. Club 12 683 The capitula are..2.8–3.3 cm. long and 1.3–1.7 cm. wide, the pericline narrowing upwards from a broad base. 3. Geomorphology. Chiefly British. A periclinal fold or dome. Cf. anticline n. ΘΚΠ the world > the earth > structure of the earth > structural features > fold or dip > [noun] > anticline anticlinal1849 anticline1861 upfold1902 pericline1915 1915 Geogr. Jrnl. 46 127 The elliptical plan is due to the fact that the structure is generally a pericline. 1962 Sci. Proc. Royal Dublin Soc. A. 1 233 The lower Palaeozoic rocks of the Slieve Bernagh inlier form the core of an Armorican pericline. 1993 Jrnl. Geol. Soc. 150 729 Blackdown pericline is the western pericline of the Mendip Hills. Compounds pericline twin n. Crystallography a twin crystal in which the macro-axis is the axis of twinning, as often occurs in crystals of pericline. ΚΠ 1877 E. S. Dana Text-bk. Mineral. ii. 302 Albite... Twins:..twinning-axis, the microdiagonal axis (b), the pericline twins. 1999 I. Kostov & R. I. Kostov Crystal Habits Minerals iii. 35 Triclinic system... Pericline twins with [101] as twin-axis and composition-plane corresponding to the so-called rhombic section. pericline twinning n. Crystallography twinning of the kind exemplified by pericline. ΚΠ 1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) vi. 326 The composition-face in this pericline twinning is a plane passing through the crystal. 1997 Clay & Clay Minerals 45 404 The host microcline contains albite and pericline twinning textures that vary in character. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1832
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