rheicadj.¹

Brit.

/ˈriːɪk/, U.S.

/ˈriɪk/

Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: Rheum n.², -ic suffix.

Etymology: < rhe- (in Rheum n.²) + -ic suffix, after French rhéique (1828 or earlier). Compare earlier rhein n.

Chemistry. Now rare.

rheic acid n. (originally) †= rhein n. 1 (obsolete); (in later use) = rhein n. 2.

ΘΚΠ

the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun]

vegetable acid1698

rhein1827

igasuric acid1830

rheumin1832

rheic acid1838

strychnic acid1840

1838 Nat. Philos. (Libr. Useful Knowl.) IV. Botany i. ix. 102/2 Acids.—..4. Malic; 5. Citric; 6. Pectic; 7. Rheic; 8. Krameric; [etc.].

1878 Retrospect Med. 78 219 Chrysophanic acid..has been found..in the medullary rays of Indian rhubarb, being known in the latter case under the names rhœin or rheic acid.

1918 A. G. Perkin & A. E. Everest Nat. Org. Colouring Matters xiii. 449 With boiling dilute acids it gives rheic acid (rheumic acid), C₂₀H₁₆O₉, and a fermentable sugar.

1993 J. B. Harborne & H. Baxter Phytochem. Dict. (1995) 507/1 Rhein; Rheic acid..Cassic acid; Rhubarb yellow.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

Rheicadj.²

Brit.

/ˈriːɪk/, U.S.

/ˈriɪk/

Origin: From a proper name, combined with an English element. Etymons: proper name Rheā , -ic suffix.

Etymology: < classical Latin Rheā (ancient Greek Ῥέα : see rhea n.¹) + -ic suffix.In classical mythology, Rhea was the sister of Kronos and Iapetus. The name Iapetus had previously been given to an ocean regarded as the precursor of the Atlantic, Iapetus being the father of Atlas in Greek mythology.

Geology.

Rheic ocean n. an ocean which is thought to have existed during the late Palaeozoic, between Gondwana to the south and some smaller continents to the north.

ΚΠ

1972 W. S. McKerrow & A. M. Ziegler in Nature Physical Sci. 27 Nov. 93/1 We conclude that there were five continental collisions during the Palaeozoic, each accompanied by the closure of an ocean... 3. The Hercynian Orogeny in the Upper Carboniferous (late Westphalian), when collision of central Europe and the Baltic Shield closed the ocean, which we now name the Rheic Ocean.

1998 P. J. Brenchley & D. A. T. Harper Palaeoecology viii. 288 (caption) During the late Palaeozoic a Rheic Ocean separated Old and New World faunas.

2001 K. B. Seslavinsky & I. D. Maidanskaya in A. Y. Zhuravlev & R. Riding Ecol. Cambrian Radiation iii. 58 Narrowing of Iapetus was compensated for in the Late Ordovician by opening of the Rheic Ocean, while the mutual positions of Laurentia, Baltica, and Gondwana did not change.

This is a new entry (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rheic
释义	rheicadj.¹ Brit. /ˈriːɪk/, U.S. /ˈriɪk/ Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: Rheum n.², -ic suffix. Etymology: < rhe- (in Rheum n.²) + -ic suffix, after French rhéique (1828 or earlier). Compare earlier rhein n. Chemistry. Now rare. rheic acid n. (originally) †= rhein n. 1 (obsolete); (in later use) = rhein n. 2. ΘΚΠ the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] vegetable acid1698 rhein1827 igasuric acid1830 rheumin1832 rheic acid1838 strychnic acid1840 1838 Nat. Philos. (Libr. Useful Knowl.) IV. Botany i. ix. 102/2 Acids.—..4. Malic; 5. Citric; 6. Pectic; 7. Rheic; 8. Krameric; [etc.]. 1878 Retrospect Med. 78 219 Chrysophanic acid..has been found..in the medullary rays of Indian rhubarb, being known in the latter case under the names rhœin or rheic acid. 1918 A. G. Perkin & A. E. Everest Nat. Org. Colouring Matters xiii. 449 With boiling dilute acids it gives rheic acid (rheumic acid), C₂₀H₁₆O₉, and a fermentable sugar. 1993 J. B. Harborne & H. Baxter Phytochem. Dict. (1995) 507/1 Rhein; Rheic acid..Cassic acid; Rhubarb yellow. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). Rheicadj.² Brit. /ˈriːɪk/, U.S. /ˈriɪk/ Origin: From a proper name, combined with an English element. Etymons: proper name Rheā , -ic suffix. Etymology: < classical Latin Rheā (ancient Greek Ῥέα : see rhea n.¹) + -ic suffix.In classical mythology, Rhea was the sister of Kronos and Iapetus. The name Iapetus had previously been given to an ocean regarded as the precursor of the Atlantic, Iapetus being the father of Atlas in Greek mythology. Geology. Rheic ocean n. an ocean which is thought to have existed during the late Palaeozoic, between Gondwana to the south and some smaller continents to the north. ΚΠ 1972 W. S. McKerrow & A. M. Ziegler in Nature Physical Sci. 27 Nov. 93/1 We conclude that there were five continental collisions during the Palaeozoic, each accompanied by the closure of an ocean... 3. The Hercynian Orogeny in the Upper Carboniferous (late Westphalian), when collision of central Europe and the Baltic Shield closed the ocean, which we now name the Rheic Ocean. 1998 P. J. Brenchley & D. A. T. Harper Palaeoecology viii. 288 (caption) During the late Palaeozoic a Rheic Ocean separated Old and New World faunas. 2001 K. B. Seslavinsky & I. D. Maidanskaya in A. Y. Zhuravlev & R. Riding Ecol. Cambrian Radiation iii. 58 Narrowing of Iapetus was compensated for in the Late Ordovician by opening of the Rheic Ocean, while the mutual positions of Laurentia, Baltica, and Gondwana did not change. This is a new entry (OED Third Edition, June 2010; most recently modified version published online March 2022). < adj.¹1838adj.²1972
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rheicadj.¹

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